i call fake.
a cop cannot (and wouldnt need/want to) check school records. its irrelevant and unlawful.
also
He asked for a warrant to search the house and get the board + arrest her if possible
"he" as in the cop? why would the cop "ask for a warrant"?
and if you mean you had a warrant to search the house. that is a lie as you cannot simply get a warrant like that. it requires a lot more evidence and time.
and no warrant would be issued unless there is a serious criminal trial upcoming.
but you would have been aware of all that at lest a week before.