Arrested over weekend, court tomorrow, what do I expect ?

[Convict]

Over the weekend I was arrested and charged with misdemeanor breaking and entering. Processed in the jail house, paid a $40 booking fee and was let go, no bail. And told to report to the courthouse Tuesday morning at 830.

I was tailgating at a concert, after the show I went to the wrong car (same color truck a few spots from where my sisters boyfriends truck was parked). I opened the tailgate and looked through the coolers for my beer. I don not find it in the first two and as I opening the third cooler, I get pinned against the truck by the owner. He yells "you [censored] with the wrong person this time, Im a state trooper." He holds me until he can get stadium police. He tells them he wants to press charges. I got thrown in the paddy wagon (my sister and her group of friends were back in time to see me being put in paddy wagon) brought to station and booked.

I did not take anything from his truck. I did not break anything on his truck. It was flatbed truck, coolers in back. There was no intent to do anything wrong here. I just wanted to have another beer before leaving the traffic mess of post concert.

This is my first time arrested my whole life, Im 28.
What should I expect tomorrow ?
Do I need a lawyer ?
Any other advice ?