While I completely agree with all of the comments above, I will say that the AA reps she dealt with in New York could have given her some information about what was happening, at the very least. I'm quite sure that they could have located a Spanish-speaking employee at JFK with very little effort. They were not going to assist her in all of these activities, but they could have given her some idea of what they were giving her, what it was for, and what she was expected to do the following day.
Beyond that, I'll have to echo - OP, what were you thinking?
Cheers.