I got caught for underaged drinking and have to go to court. What will happen?

I have no idea what will happen to me. I've never been in trouble with the police before, so this is totally new to me. The problem is, that i am from Germany and am not sure, how things are working in Arizona. When i was caught, I was carrying a beer and was a little drunk (that's what they said after i blew in their measuring instrument). I think - since i am a foreigner - my case is different, because I'll leave in two weeks anyway. Do i have to be worried about my flights?