I got fired from an ice cream place, can i burn my visor and take a picture?

I got fired from the ice cream shop i worked at for a dumb reason and a bunch of my friends are hanging out on tuesday. If i burn my visor could i get in any sort of trouble by taking pics and putting it on fb. Im not even sure im going to my friend just said that i would get in trouble for doing that but i don't think they can do anything. They fired me already, didn't they?