He is doing this because you went no contact. You did not give/have the response he thought you would when he hijacked your clothes and other belongings. He is trying to manipulate you and drive you crazy. You have two choices, get dragged into his BS or don't play along.
The cops could have easily swung by your place and felt the hood of your car to see if it was still warm, as it would have been had you been recently driving and not sleeping for hours like you told them.
He is irrational, don't try to rationalize anything he says or does, it's not possible.