doors won't unlock even with keys
 

I went to start my 93 convertable this past weekend and the doors woudn't unlock,i first thought the remote battery died but then tryed the key and doors woudn't still unlock.key turns in lock door just won't open.has anyone else had this problem and what did you do to correct it.really need some help just about time to get my baby going and can't even get in.i even tryed the passengers door.

Doors won't unlock
 

If it's as cold where you are as it is here, the door weatherstrips may be frozen shut.