This happened to me last week, Alarm would not disarm with the Key in door lock..
I called a Stereo / Alarm shop in the area , and they faxed over a
sheet with all the wiring Codes and locations .
So I found the Security module and Ground out the correct wire for a second and the system disarmed...
Good luck , Just give your local stereo shop a call first,
The Dealer want the car towed in and replace both door acuators in my case ...
Most Car makers have back-up ways to disarm their systems..