Many gun stores make you put trigger locks on your unloaded firearms while inside the store with it. I'm just saying...if Gun stores don't want you armed in their stores, why should anyone? Why are so many of us OK with them not wanting us armed but outraged about a grocery store not wanting guns inside? Personally, I think it's odd that I can carry inside a bank but not the post office.
That 1 has always baffled me as well...lol
Unless it's a government building or school or airport or something along that line, there is no law against walking past a "No Firearms" sign at a place not categorically excluded from lawful carry. All they can do is ask you to leave.