Unilateral contract change? Since guns are legal, I don’t see how they do this any more then they can tell you how to exercise other constitutional amendments. Since they are trying to make gun free zone, will they have 24x7x365 armed security? Will they escort to/from cars, etc.?
This is New Jersey. Guns are NOT legal unless you have begged permission from the almighty state to purchase one, and been blessed with their approval.