“With as rambling as the post was he was right where he needed to be”
Frankly, that’s for a court to decide, not you or I.
“In order to get a hospital to release you assuming you are not a mental case you must sign an AMA form”
Not really, this is a free country, you can walk right out of the hospital and there isn’t anything they can legally do to stop you. Certainly, they would like to you sign that form, in order to absolve them of liability, but the form is not any kind of legal necessity.
IF you walk out the nurseswill indeed record you as AMA. Hospitals at that point can deny you teadmission