I think most states have the same no Concealed Carry policy. Here in New York State, it's clearly posted everywhere, No weapons on school on School Property. When dropping, or picking up my kids, I make sure, I never exit my Vehicle.
Unlike super markets, or any other stores that restrict concealed carry, I honor School policy.I know NYS will prosecute to the fullest letter of the law. But most importantly, I want to set an good example in front on my Children, Showing them that I, follow the rules, as I expect them to do.
Leading by example.