Our FIRST Lego League competition is this weekend at Henry Ford II in Sterling Heights. Can a private organization ban/restrict firearms on school property during a non-school event? I will probably cause a bit of commotion by carrying there, but can they legally keep me from doing it? I apologize if this has been brought up before, but the thought just struck me a few minutes ago and I don't have much time to dig for answers before Saturday, so I'm turning to the wealth of knowledge here for help.