As far as I know, there are no laws regarding the use of OC spray in GA. Today, I was at the Post Office and for the first time, actually noticed there were metal detectors when you walk in. I had seen them before, but never took any note of them. Now, in GA, I can't CC to the Post Office, nor carry my utility knife, but nothing says anything about OC spray. My question is, will the metal detector go off if I walk in there with a can of OC spray? Also, how does it differentiate between keys, cell phones and then knives and guns? Is it just the amount of metal before it goes off? I really don't want to test this. Any help would be appreciated.