WOW, a rude Citizen! Well it is certainly not impossible, and I very much believe you Biscuit. I must say though, that you dont come across very many. As far as "report" or "let it go". WHEW, that is a tough call for sure. I remember a line in a famous classic rock song from RUSH. It says "If You Choose Not To Decide, You Still Have Made A Choice". I think that is the choice I will make here. It is truly your decision, and whatever you decide to do. Im sure we will all stand behind you.
Being a longtime employee, (he/she) certainly knew better. Sure dont want that attitude to take hold either. Sorry that happened to you biscuit.