Took my 60D in for some minor work today (tire rotation, badging, rattle on the dash). When I picked the car up this afternoon I got a message saying "Driver Assistance Feature Unavailable. If problem persists, contact Tesla service". I went back inside and inquired and was told that the sensors may be re-calibrating and to give it 1-2 days. They admitted they didn't do anything that should have impacted the calibration and were unsure why I'd be getting the message. Has anyone else experienced this message? If so, what had happened?