it might be a stretch, but the cat is lost property that has id markings. the shelter messed up. guess what happens if you buy stolen property at a pawn shop and it eventually surfaces - it’s not yours (i know not totally the same) and you’re out the money. Realistically it probably is more civil than criminal.

the prosecutor’s office may be helpful to complain about this “police” department. The ASCPCA has been a mess and many counties removed their law enforcement status. the asbury park press may be interested too.