PJ Media

In PA a CCW holder may even carry legally in a court house unless a sign is posted (who’s language is spelled out in the law) and a secure place to lock up their weapon while in the courthouse must be provided. You may also carry in a school despite the gun free zone crap.

While it may be “store policy” to not allow firearms store policy does not carry the same weight as Law. If you are legally carrying under State Law then the store has no legal standing other than to try to press trespassing charges, but as the store is open to the public I don’t see how they could even do that.