This was my very first experience with our Georgetown. The screen door was warped before I took delivery. I learned to drive the motorhome with the steps out (at least for the first 25 miles). Thankfully, I caused no damage. I received a bunch of waves from passers-by. They eventually replaced the door.
To get home (another 50 miles), I warped it in the opposite direction to make sure the contacts were engaged (towards the bottom of the door). While waiting for the replacement door, I also glued a block of rubber to the screen door on the opposite side of the contact--this made the outer door hold the screen door against the contact. Not so surprisingly, the new door came with a similar block of rubber mounted to it--I'm not sure if the factory did this or if the dealer did this. Either way, I didn't have to. The logic of the lockout switch is such that the steps will extend if the screen door is open--regardless if the engine is running.