Keep trying, mine dried up too and took some spraying with WD40 and working back and forth. If you get it working , buy some Lockeze spray , stuff has graphite in it, works great.
What ever you do don't force it. The clip in there is probably old and dried out and will snap pretty easily. Mine is broken and I haven't been able to unlock mine with the key for several years now. Luckily the remote still works and the keypad does too.
I always use my remote to lock/ unlock my doors. I guess this last winter really took a toll on the lock mechanism. I've used graphite in all of my past vehicles, just haven't tried it on this one yet. I'll fix it, I just wanted some advice and input on wether y'all have had to deal with this. Thanks guys.:banana::haveabeer: