I can see it now...
Driving along, 'Gee it's getting a bit warm. I think I'll turn on the A/C.'
Stop the car along side the road.
Get out, go around back,
start the gen set,
go to the passenger side front door,
open and sit sideways in the seat,
reach over the seatback turn on the A/C,
get out and close the door,
walk around to the drivers door,
and find that you locked all the doors when you got out of the passenger side.
Explaining what happened to the nice Police Officer .