wow...a piece of tape?
There has to ( or should) be an interlock
GM uses a 3 pole switch on the brake pedal ( 2 NC/1 NO) which is used for brake lights, cruise off and also to prevent the gear selector from moving out of park without foot on brake.
That "could" control an interlock to prevent step moving unless vehicle is in park
I don;t know if RT designed that way though
one of my Rockstar bosses got a new prevost- on one of the first trips he went for the light switches in teh front lounge and the designer had placed the awning switch on same panel w/ lights- no interlock...awning deployed and was torn off instantly
expensive lesson for the coach leasing company