If you returned the property I do not see where they have the right to collect any form of compensation from you. However, as you did shoplift they would be within their rights to file a criminal complaint.
Best of luck!
Excellent advice be Attorney Leroi as to the deposition. As for him threatening to share the contents of what you said, IMMEDIATELY contact your lawyer to discuss getting a temporary order that would prohibit the parties from sharing the contents of discover if allowable in your state. Some Federal Courts have held that sharing information gained during a Family Court case can warrant a violation of your right to privacy so I would immediately speak to your attorney about that option.
If you can prove they knew of the defects then you can sue to rescind the sale of the vehicle for full price, minus 15 cents/mile put on the vehicle.
For more information go to this site: http://www.mass.gov/ocabr/consumer/autos/lemon-laws/
Post any further questions in the comments section and I'll do my best to answer them. Best of luck!
Given the distance factor your next step should be to find a Landlord/Tenant attorney in the county that property is in and speak with them to handle this for you. You will need to go through a formal eviction process at this point.
It seems as if most towns in Massachusetts have those intersection cameras, if the intersection had one I'd seek to have the attorney provided by the insurance company subpoena the records for the date of the accident.
I'd call the local police department to report is whereabouts and that you know he has a warrant. If that fails, call the local State Police Barracks. If that fails, call the District Attorney's office on Monday.
If you are facing a felony charge you should have an attorney who is the best person to advise you on this matter. If you don't have an attorney find one IMMEDIATELY to better discuss this. Given the facts you provided no attorney can responsibly advise you as to the potential consequences.