not sure wht to do for son

[david]

I posted several years ago. Things settled down with my bpdex and I needed a break.
Our youngest son (18) was 302'd by his mom the other day. I just found out they want to 303 him.
We have 50/50 custody in our court order. However, last year he wouldn't come out of her residence when I cam to pick him up. Not much I could do about that. He didn't like my rules: go to school, do homework, etc. His mom works noon until 9 pm so he comes home to an empty house and can do whatever he wants. School suffered and he wouldn't talk to me for months. Eventually he reached out and we started talking again. Occasionally I would pick him up and go out to eat.
His behavior became bizarre a few months ago and he went back to limited contact with me.
Apparently he made some kind of threat to the school and they closed for a day. I went to get a copy of the police report and they told me I was not allowed to get it. From what I gathered, the police did not believe it was a credible threat. They went to his moms' to talk to him and they left. His mom decided the next day to take him to a crisis center at the hospital she works at. She is a nurse.
I knew nothing of this until he called that night to say his mom dropped him off at a hospital and drove away. He said the social work said he could leave so he called me to pick him up. When I arrived they told me he was being 302'd. He had a cell phone and posted on safe2say that his mom abandoned him and he thought it would be best if he was not alive.
The next day they transferred him to to a psych facility. I was told by people years ago it was one of the better facilities in the area. My ex's therapist actually wanted my ex to go there a decade ago.
I called the facility and they told me since he was 18 I couldn't get any information about what is going on. He signed a release for me at the hospital but apparently that does  not transfer to the facility. They told me he needs to call me and give me a password before I can have any contact with him and that they can not give me any information until he does that.
My ex emailed me a short time ago and told me the psychiatrist wants a 303 because he has no idea why he is where he is and doesn't understand what all the fuss is about. The doc thinks he needs to detox so they can get a baseline.
I think most of this makes sense. I don't understand how ex got a call from the facility unless son gave her permission. I find that hard to believe although it is possible.
Ex also sent me an email and found mushrooms hidden in his room. I don't know much about them so I looked online and he should not be high from it at this point in time. It's been over 24 hours.
Any insight would be appreciated. I live in Pennsylvania and he is at the Horsham clinic.

Our objective is to better understand the struggles our child faces and to learn the skills to improve our relationship and provide a supportive environment and also improve on our own emotional responses, attitudes and effectiveness as a family leaders

[GaGrl]

Oh, david, I thought you were almost through it! I'm so sorry.

Is the 50-50 custody arrangement still in effect, or have they considered he is an adult?

[david]

 He is 18 so, without his consent, neither parent can get information. It seems like consent is given if he calls and gives me a password. If I call with the password, I believe I am allowed to ask questions about his health. That was the way it was explained to me.
 My ex emailed me a little while ago. I had emailed her asking how she was able to get information. She replied that since she filed the 302 she is expected to be at the hearing for the 303. She was given no information as to what they think is going on besides the fact that they believe he needs more time for the drugs to get out of his system so they can find some kind of psych baseline.
She said the doc told her he is laughing and doesn't understand why he's where he is ... and he has no understanding about or insight into his condition. I saw my ex with psychosis and that's what it appears to me to be.
 He was going to a therapist prior to covid. My ex and I were there a few times. One time my ex said something to him and he went off about things that happened when he was around 4 years old. He brought up things that I had forgot about that ex did. I was startled how vivid his memory was and the details he talked about. Ex denied his reality and the therapist switched things up to defuse the anger he was directing towards his mom.