Now I am starting to wonder if the way I described those old locksets working was because most of the cars I was around as a teenager were older and worn out and allowed removal of the key in the OFF position. Hard to say without a time machine and going into a new GM showroom in 1962 or something .
If you find a time machine would you please stash me a vehicle someplace safe? I'm not fussy, a simple Bel Air or C10 would be fine.