Can anyone help me!! After a very cold nite I unlocked the car , using the remote, door was a bit frozen so a bit of a pull was required, started the car and then relocked the car using the spare key, so far so good! I then unlocked the car , again using the key lock, and realised that the external handle wouldn't open the door? So I climbed in via the passenger door and found the interior handle wouldn't open the door either.............any ideas????