Keep the car at a relatives or friends garage
Generally once your lender has identified your car for reposession, you must pay off the existing loan in full to keep your car. However, it doesn't hurt to try to negotiate with your lender for a better deal.
No they can only be present if you are being sued, or there is a disturbance
This depends upon your credit score.
I would think theft
They repossess it anyway and you could be responsible for the repair cost, depending on the lease contract.
I believe it is illegal to hide anything in any state from reposession.
SD since it is registered.
the police or dealership that you got the car from always handles REPOs
You will lose the car if the Auto title loan is not paid. The lapse in repayment can result in reposession of the car.
all of it. Just because they cant find the car doesnt mean your debt goes away.
The filing will delay the foreclosure or reposession for a bit. But, presuming there are secured loans to the items you mention, they will need to be satisfied (paid) in the course of the bankruptcy, or those actions would still occur.
It is treated as a voluntary reposession and it still hurts your credit. They will auction the car and you will pay the difference of your loan and the amount they get from auction.