I got was put on a 72 hour hold but received nothing from police or anything like a ticket or criminal charge?

I was drunk and said I wanted to kill myself cops arrested me on Sunday morning and put me on a 72 hour psyche hold. I got out early after psychiatrists found me sane and just drunk. I got no paper from the incident saying whether I was charged or anything, I am 19, so I should have been charged for underage drinking or at least I should have got a ticket or something. Yet I go on Wednesday to the court clerk to see if I am formally charged with anything or received a ticket and they say no. They send me down to the District attorney's office to check if I am charged with anything and they say they don't have a record to charge me. Did I get off? The cop did feel bad for me. I figure the charges or anything would have gone through by now. So am I off?