Add "cooldown" to CarTimer #14
Description
Sometimes, the target state for a car will rapidly fluctuate in a way that can cause spurious events.
Red Bull Ring is a particularly nasty example of how "OffTrack" can change rapidly, or in weird ways. There is a strip of asphalt after a gravel trap that is technically considered "on track", so bouncing off the wall can net you two "off track" incidents.
Adding a "cooldown" period to CarTimer would solve this issue. For a period of time after the car is no longer in the "target state", re-entering the target state should not start another timer. (It should also reset the cooldown)