my car was vandalized and then stolen while at the repair shop is this covered under my insurance

You need to make sure that you have reported the damage and theft to the police, and then obtain a copy of the police report.  You also need to contact your automobile insurer, and advise them that the vehicle has been vandalized/stolen.  If you have comprehensive/collision coverage, the damage/theft should be covered by your automobile insurance up to the fair market value of the vehicle on the date of damage/theft. Best of luck.