We live in Park City, UT. Winter has arrived, temps have dropped. Quite often in the morning, I get a message saying the right door pillar camera is blocked or blinded. I can't wipe it off from the outside of the door, because it's fogged up inside the camera housing. I've tried running both the hot and cold defrost and adjusting the temp in the cabin, but that doesn't seem to have any effect. Should I take it in for service? I don't use AP much in the winter anyhow, but it's irritating to see that warning all the time.