Same here we do not unhook. And with the Ford 250 do not disconnect the cord.
I will add that in most overnights like cracker barrel, Walmart or truck stops, you may want to check the area as I do not think they are expecting you to open the slides and "set up". We run the front jacks down to stabilize and lift a little and we will run the bedroom slide out so we have a little more room. We are really only sleeping and on the road again. If I do, I try to make sure I am in a location that no one will walk or drive into the slide. Would not be a good start to the day -
Safe travels!