Lone Star would find several couples making out because why not have a horrible running gag here. Anyways, one of the cabins was locked, but for the why? Could have been plot related, or it could have been for any mundane reason.

Meanwhile.

"Too many that I hope it doesn't become a gag," Fox Trot muttered. They then moved down the train to the next cart and stood in the hallway. Turns out, this one was locked too. "Care to do the honors with your magic?"