I have been out of town for about 3 days, my car was last driven on Tuesday and it is now Sunday night. I started it and it made a weird grinding noise. The lights all came on and I drove it about 5 miles seeing if it would warm up and they would go off. It has been very cold while I was gone and the car was covered in snow. They didn't go off, but when I turned the car off and back on, the grinding noise was not there. Any ideas if it is safe to drive to the dealership, which is about 50 miles away? Thanks!