On the morning of February 24, 2025, I went to the doctor’s office because I was really sick. Their protocol is to check in then go wait in the vehicle since you might be contagious to other patients. My mom had gone with me, and was inside checking me in. I am sitting in my parked vehicle at 7:35am when there was a VERY loud pop that scared the heck out of me! My mom said she heard it from inside the building, as did other patients sitting in the lobby! I waited a moment and looked around. There was nothing unusual so I exited the vehicle and walked around. I got to the back and found the whole back window was completely cracked, although still intact, and there were big areas on the sides and bottom, where there was more breaking of the glass to the frame. The temperature at the time was in the low 40s, and I had used the heater from the house to the clinic, which is about a mile away. The car was on, as was the heater, which I have done on many occasions with no incident.