Now that we have concealed carry in Illinois one bank here in Southern Illinois has a sign "Protected by Smith & Wesson" the bank president said they always had some employees who carried but now they decided to advertise it. A short time ago down here in Cairo Illinois two bank employees were killed by a robber.
The only food stores I've seen posted around here are the Aldis stores and a natural food coop. The Walmarts here in Illinois were posted no carry for employees and vendors but they got a lot of negative feedback from people who carry, including me, because they used the state approved CPZ sign and added wording to it. Those signs came down pretty quickly.