My model 3 windshield was beyond saving so I called Safelite and was told they could replace it but they could not calibrate the camera mounted on the windshield. I then contacted Tesla in the app, schedlued an appoinment and a day later they canceled the appointment saying they did not have the part in stock and would not have it for weeks. They suggested i call Blue chip auto glass, a company in the Phoenix metro area. They had a mobil service which came to my house replaced it in 1 hour. I asked about the calibration and was told that our cars do it automatically within 100 miles. I wouldn't be surprised if Tesla has set up other private companies throughout the country to do glass replacement. As an aside, the tech told me this was his 4th M3 windshield replaced that day!