In AZ, the sign has to have specific features to be enforceable. Tthe law is as follows;
Licenses; Handguns; Posting of Notice
A person with a permit issued pursuant to section 13-3112 may carry a concealed handgun on the premises of a licensee who is an on-sale retailer unless the licensee posts a sign that clearly prohibits the possession of weapons on the licensed premises. The sign shall conform to the following
1. Be posted in a conspicuous location accessible to the general public and immediately adjacent to the liquor license posted on the licensed premises.
2.Contain a pictogram that shows a firearm within a red circle and a diagonal red line across the firearm.
3.Contain the words, "no firearms allowed pursuant to A.R.S. section 4
B. A person shall not carry a firearm on the licensed premises of an on-sale retailer if the licensee has posted the notice prescribed in subsection A of this section.
Even if they posted an improper sign, I would still not solicit that specific locale. If they do not want my business, I will not give it to them.
The natural state of man, the way G‑d created us, is to be happy.
Look at children and you will see