But @cycletrain, is your device regularly tested to prove it is still able to drive the vehicle safely? This is one of the major flaws in the system that should be rectified. Personally, I think all such devices should be required to be re-tested to show that it is still fit for purpose, ideally every 3 years. I think we all believe that over time, the abilities of such devices improves over time, but actually, they also degrade in areas that are not so simple for the owner to identify.
Regular testing is the way forward. Speed limiters might be too, but I'm on the fence on that one.