It was just a replacement for those temporary chalkboard menus, the person wo did that previously left. Perhaps she has bad taste but that doesn't mean she was slacking off. Did they spend a lot of time on the chalkboard menus previously?
This is what people are actually mad about when businesses use AI art. You claim to live in an artistic community, great, ask your staff if they have any friends who draw who want to come by and make a quick $100. You spent more money on a worse result that alienates your community.