It probably would invalidate the insurance assuming you took it in the first place and assuming they could prove the car was unlocked, but really, I doubt the tire and jack are worth worrying about. Personally speaking, if my rental agent told me to leave his car unlocked, that’s good enough for me. But I know who I’m dealing with and I know he’d not penalize me for following his instructions.


Respectfully,

pat



"Always keep your words soft and sweet, just in case you have to eat
them."