This is a head scratcher.
Getting ready to camp and noticed the over the door and step lights were on. Turned off the switch and still on. Unplugged all the wires from the switch and they were still on. Found the fuse to that circuit and lights are off. It appears that these lights are the only ones on that circuit.
I was wondering if there was a separate "master" switch.
Our camper has a master switch that controls the scare lights. It has to be turned on, then the lights on each side have their own separate switch. Just not as advanced technically as the newer campers.
Glad you figured out the problem.