Cold night, opened drivers door to get in and noticed it was hard to open but it did. When I went to close it, it didn't shut--seemed odd so I shut it harder and it closed--- the only problem is it didn't open again. I got out the other side and tried prying the door open from the outside --nothing works---it's jammed pretty good. Wouldn't this be covered under warranty? This is a two year old car! I've experienced problems with the drivers door not unlocking on first attempt in cold weather--but that's only happened a couple times. Has this happened to anyone else?