Went to the Dallas Museum of Art with wife & mother to see the King Tut exhibit. The security guards there were checking all bags. Not sure what for. I had my camera bag with camera. Wife was purse-carrying her XD. Female guard looks in bag and is all "what??" We explained the CHL thing and they took us off to one side for about 90 seconds while they waited for the security supervisor to show up and say "no problem." They were all very polite about the whole thing.