Arrested at a casino in pa for finding a cell phone on the floor and not returning it

found a cell phone on the floor at a casino in pa, forgetting to turn it in before I left, i placed it in a recycle machine, went to that casino the next day and two state troopers came and got me , told meto come with them upstairs, handcuffed me to a bench , went through my purse and found a very very small amount of pot and a small pipe , after fingerprints and mug shot, they let my husband come pick me up, and told me I would be summons to court. I was not given any paperwork when I left, just the paperwork I signed on my own , s self release form, neve wanting to step inside that place again quite embarrassing . not sure if i need a lawyer or what is going to happen, I am 52 year old disabled mom , never been arrested before