Is there any reason a business should treat police officers carrying guns any differently than civilians?
Indeed. If Denny's has a policy of forbidding firearms, that should apply to police as well, unless they are present in an official capacity. Reason enough to avoid Denny's if that is the case. I'll have to check out a local resturaunt, and see if they are posted. If they aren't, then likely this is just a case of an idiot libtard exceeding his/her authority.