I'm embarassed to say this happened to me in Baltimore County, MD. Fortunately I was still within twenty miles of the hotel when I realized my mistake and called the hotel to let them know (which turned out to be a mistake, since the next thing they did was call the Baltimore County Sheriff. I had to wait there until a deputy arrived, who grilled me at length with questions he shouldn't have been asking. His blatant ignorance of federal and Maryland firearms laws was staggering. Eventually what satisfied him that I was free to take my pistol and go is that I possessed a valid Texas CHL (which isn't honored in Maryland or my travel destination either). He also had no idea why I unloaded the pqistol prior to putting it back into its case for travel. Moron. But his ignorance made it slightly easier and faster for my family to resume its travels, so I wasn't about to edumacate him.