Escape ladder won't work, period. Where you going to store it close enough to the escape? It will get tangled up, time needed to set it up is too short. Did you both practice using it?
Just get the hell out and know what your going to do ahead of time.
2015 Fleetwood Discovery 40E on a Freightliner XCS chassis with a Cummins ISL9 pulling 1 and/or 2 motorcycles, '07 Honda Accord OR a 17' Runabout Boat.