“Literally, the first day we put the rule in effect, there was a convention in town, and there were people from Florida all over the place. I was like, ‘Oh, great. This is the first day. There are going to be issues,’" Leonard said. But “people were coming up to the door with their cards out. There were a couple groups that didn’t, and every single time, there was someone in the group who turned to the person who didn’t have a card and said, ‘I told you you would need it in D.C.!’"