Yep. There's actually no such thing as a gun free zone. Those signs might as well say, "hey all law abiding citizens here are unarmed"
Like painting a target on them. My mall is has a no gun policy too. I don't go to the mall anymore. When I do, you can bet I'll have one concealed. I'm not shoving myself or my family in a closet and praying. I'll be fighting back.