2 weeks is a long time to be detained, but the problem is that she was traveling with no ID, no passport, and wasn't a citizen of either the US or Canada. She couldn't be discharged back into Canada immediately, because they had to confirm she was allowed to be there.

I have a feeling if she was a Canadian citizen, this would have been a slap on the wrist, and she would've been let back into Canada within hours, if not immediately.