Frank - sorry , this girl isn't all she is cracked up to be because they don't give you disciplinary for ditching one day, esp if you have a clean record.
I have a daughter in h/s and have been there done that with her and it just doesn't happen. There has to be other circumstances for them to bring her to that level of disciplinary action other than one day of ditching school. Grades, ISS, unexcused absences, etc.
BTW -- I hope she is 18 for your friends sake ---