He quit his job!

I put "our" car in the shop up here ...and they repaired it. There was a $600.00 bill to be owed on it.
Last night HE STOLE IT!
He stole the title from me ....and he took the car!
I'm left with nothing but the bill.....
That was a pleasant wake up call this morning..
and there is NOTHING the garage nor I can do.....
So I have to pay off his bill....I am soo sick of cleaning up his messes.....any advice?

**The baby is starting to crawl...