When heading out to work today, I couldn't get my drivers side door to open. I tried to unlock/lock using the key fob but that didn't do anything. I had to go through the passenger door to manually open the driver side door using the handle. The only thing I can think of is the door got stuck because of the cold. It dropped to the teens last night. This previously happened to me a few days ago. On both instances, there were no obstructions in the door/lock area. Anyone ever experience this before?