Strictly speaking I think there might be rules about signs or bars or both, but since I can't go drinking any more I don't fret much. I did see the "no firearms" sign in the front window of the book store, but I since didn't see a liquor license next to it as per ARS 4-229.A.1 I ignored it. Also ARS 4-229 gives a free pass to non-Arizonans or people politely looking around for a proper sign.
On my trips through the years to Arizona, I’ve seen many 1911s in condition one openly carried. I have openly carried in Utah in the past, into the market to buy camping/hunting last minutes, with no one batting an eye.
This day/age, I only carry hot and concealed, hence, I’m not the first target, and I’m prepared for stupid. Interestingly, in Utah, you can’t permit carry in the usual ... jails, courts, fed facilities, etc., but the law’s only singled out area is POSTED churches as a place you can’t legally carry concealed.
Colleges, public schools, malls, bars, all else is legal permit carry. If the public is welcome, you and your carry are welcome. We’re trying our best to get Constitutional carry passed.