I washed my CS this past weekend and I knew it was cold before I started when the hose was frozen. I found another hose and went to town. During the drying off process as I reached the passenger rear quarter hip and I felt a drag like there was 180 grit sand paper slowing me from wiping. I went back over it and it drug again. When I put my hand on it there was a thin film of ice! The rest of the car was fine and that part was the coldest because it was located in the shade the whole time. It was a shocker at first, then I laughed. Within minutes of that I noticed the ground with the drained off water frozen as well. Brrrrr!