The sign is driven by the FCCA. A business owner is allowed to carry outside the scope of the FCCA by following the (Aggravated) Unlawful Use of Weapons exemptions--which existed long before the FCCA was published. So the owner isn't carrying pursuant to 430 ILCS 66/65, which is cited on the sign, and is therefore still compliant with the law. Thank you, that sounds good. I was telling one of his employees that he needs to take that sign down if he wanted to carry, so I was mistaken.