“As lithium-ion battery fires create their own oxygen during thermal runaway, they are very difficult for fire and rescue services to deal with. Lithium-ion battery fire control is normally only achieved by using copious amounts of water to cool battery cells.”

Source: Fire Protection Association

Buuuut a permit is a fish, not a crab!

They might, I don’t know. But I don’t go to the dealership anyway and wouldn’t recommend it to anyone.

Do yo want something like this?

CrowView Note-All-in-One Portable Monitor

In most vehicles with onstar (Chevrolet mainly) you can pretty easily disconnect the cable that connects the computers to the antenna. You need to install a dummy load to keep it from turning on the check engine light but other than that it’s trivial. Once that’s done, the car will still collect data but it can’t send it anywhere. Just don’t take the car to the dealership for maintenance or they might “fix” the antenna connection for you