“As foolish and irresponsible as this law is, it does make this small gesture of respect for private business rights. Restaurateurs don’t like the stigma that a no-weapons sign carries, but it could become a kind of welcome mat for diners who prefer gun-free dining.”
There was another article from Arizona over the weekend - they interviewed owners that figured out that bad guys don’t pay much attention to signs, but good guys with guns do...and they let the owners know it - and the owners took those signs down nice and quick.