[Uncle Chip]

My understanding is that at the checkpoint there would have been atleast a half dozen armed bp agents there and they would have walked around to her side and asked for her identification —

[Bubba Ho-Tep]

Nah, most of the time they just glance at the occupants and then, assuming they don't look like illegal immigrants, wave them through.

That said, this girl's story has seemed hinky from the get-go. She may not have known what he did, but I don't think she went unwillingly.

[Boogieman]

Yeah, that’s what I would assume also. Maybe if she was a small child one could get away with saying “Oh, my daughter is sleeping, please don’t wake her”, but I don’t think that would fly with a teenage passenger.

[USNBandit]

BP checkpoints usually don’t ask for id. They usually just ask your citizenship. If you say “U.S.” they wave you through.