Help!!! Can't open door!!!!

I have a 2007 Cameo with the standard RV door latch and deadbolt. It is parked a home but I cannot open the door. Both the latch handle and the deadbolt are unlocked. The latch handle opens, but does not retract the door latch. All the windows are closed, and there is no access to the interior through any outside compartment, so I cannot enter the unit. In addition, the doorside slide is extended, so I cannot drive the unit to a repair facility. I expect I will have to somehow destroy the entire mechanism to gain access, but how? Has anyone solved this problem in the past? Any comments are appreciated.