First thought protect the living, Property can be replaced Lives, not so easily.
Then, depending on how hot the fire My big extinguisher might get me close enough to do a real fast drop and boogie.. Otherwise,,, A meeting with a fire engine can be set up for the next entrance ramp.. Now we have done that before. (well, I was coordinator) this is kind of routine where I was sitting at the time. Better to have the FD in front of you and set up than to have 'em chasing you down the freeway.
But I think I'd be wanting to boogie, with our without the motor home.. The best place to be in a fire, after all is... SOMEWHERE ELSE.