The other day unlocked car and drivers door wouldn't open went through back door and opened with ease drove 12 miles or so to work and it worked fine when I tried it at work now this morning the passenger one did at the misses got a strop on as she thought I locked her out in the cold lol but again opened fine from the inside ?? Is it just the cold weather that's freezing the lock or is it a problem beginning to start ? Any suggestions ??