Managed to get a bad scratch (down to bare metal) on the back of the trunk lid of my M3. Took it to the only Tesla authorized body shop in Raleigh NC. Got floored by the 2K estimate to fix it. Other than the back up camera on the trunk lid I am aware of no other sensors. I am being charged almost $900.00 for “sensor recalibration”. That seems extreme to me. Anyone else have experience with Tesla authorized body shops?