I'd sue the principal and the school district for destroying his naval career before it even started.
No question about it.
This principal would never own a piece of property or hold a job in education again.
He has the appointment, reports in next week, and there's nothing the principal and school district can do about it except act like cry babies. If the Naval Academy staff is anything like my classmates from Air Force they're probably having a good laugh about the whole thing and looking forward to the induction of a new midshipman that has shown he has a spine.