The guy is a dumbass. There is no law concerning CCW for FFL holders or shops. The reason many dealers and shops don't allow CCW or open carry, is because of what those people do when they come into a gun shop. I worked part-time in one for a while. I can't tell you how many morons pointed loaded guns at me or waved them around the shop and had to be yelled at or scolded for stupidity. They would come in and see a holster they liked, and draw their pistol from concealment and stick a loaded gun into the holster to see if it fit. I also had morons ask me a question about their gun, and draw it and point to whatever the problem was (sights, grips, etc), as if I needed a visual aid. The gun was pointing at me. After yelling at one of them, he told me, I'm not going to shoot you, I know how to handle a gun. Finally, we put up a sign that stated CCW or open carry was welcome, but the gun must stay holstered. Any dumbass that decided not to read that sign and unholster, was told to leave immediately.