Ugh. You're so thoughtful and funny and caring. I'm so sorry.
Question: why are you listening to the AH's lawyer? Don't.
Are the kids with you? Do you have kids? Can you camp out somewhere nearby until this is over? So you can get to the free divorce thingy? Is there a homeless shelter you can stay at? They'll help you apply for benefits. I know that sounds crazy, but if you have nothing, you will qualify for help.
I might add, and gently, that you sound defeated. Which is understandable, but is your AH's goal, to create such stress that you give up. Is giving up and doing nothing is how you want to address this?
Why not go up and get the car anyway? Keep it hidden. He knows where you're staying-so change that location. Why do you think he'll just come take it back?
Why not ask for it in the divorce? And again, why are you listening to HIS attorney?
I"m sorry if this causes you more stress. You're just such a good person, this really cheeses me off.