No law or gaget will ever take the place of judgement, and the lack of judgement is what gets people into trouble in the first place.

I drive a 33 foot motorhome that weighs 16,000 pounds. It is a typical large motor vehicle and it will not stop on a dime. I don't need a governor (limiter) to keep me from speeding, what I have is the desire to avoid killing someone.

I don't know how many times I have had idiots pull right out in front of me with inches to spare because they don't know how hard it is to stop such a rig. After about the third close call, I wired the burglar alarm ( siren)to the horn so when I lay on the horn now, I get their attention.

In other words, don't rely on gagets, use your head for something besides a knot to keep your back bone from unravelling.