Resetting the system and clearing out any personalization. For example most rentals will have a huge list of contacts saved from people who paired with Bluetooth and unthinkingly let the car have all the contacts (which I was guilty of doing until I got wise to it).
The opposite is a good idea too, upload your locations to Hertz and they could pre-load GPS on the Tesla with where you're going as saved locations, contacts, etc. and then wipe them when you return the car.
I bought a used Kia a few years back, and the GPS/head unit had many addresses still as saved destinations. I could have easily figured out who owned the car, which shouldn't happen.
Limiting speed, monitoring location, monitoring of “safety score” (attempts to measure things like “aggressive turning”), low cost of maintenance (no oil changes, etc), drivers are purportedly safer with autopilot than without
You ever try to grenade the gearbox in a minivan by doing mean stuff to it? In a rental you can!