I was in a store today(in Utah) and followed out by the store's LP. He asked if I wanted to come back inside and talk about what I had in my bag. I replied that I didn't have anything in my bag and that no, I did not want to go back into the store. He threatened to call the police and I told him that he could go ahead and do that, but I didn't have anything and didn't have to show it to him.
He followed me out into the parking lot and told me he was taking down my license plate information. I told him he could do that.
My question is, could anything actually happen? I'm worried now that I should have just cooperated, but as far as I knew I really didn't have to go with him, and I obviously didn't want to.

