The government official isn't the police, but even more so, I'm not talking about the government official, but the random public who attends. I can say they aren't allowed on my property at which point it is a crime for them to be there.
http://www.legislature.mi.gov/(S(2d5ss4y1dr2wfo0uz3r0a3zk))/...
I wouldn't bet against there being some jurisdiction where it is a felony.