remember most NO GUN OR WEAPONS signs are for the general public, NOT for a permitted,legal to carry concealed person, usually if a business or particular building dosn't allow concealed carry, it normally will specify,no guns, "even for concealed carry permit holders", so if your properly concealed, don't sweat it, and besides if you ccw'ing properly ,no one would know your armed any ways, so go about your business.....and smile..