cachsux
Wah
as a swing/cover, i hop into a different vehicle almost daily...
no hills to verify if the parking brakes held until i'm on-the-road; the vehicles were already parked in the level warehouse spots for the AM sort/load
after i knew about it, i definitely made myself aware to put it in P at every stop until i was done; then give that contractor a heads-up to fixing it or get a rental for the next day
Instead of a hill one can hold vehicle with footbrake, apply parking brake,place vehicle in drive, ease off footbrake and see how well vehicle holds.
Us flatlanders have to adapt.