My current car has the speed limiter fitted that picks up roadside signs and will offer to set the maximum speed to that. In line with the new rules I can over -ride it, but 9 times out of 10 it’s correct, and not wishing to kill or injure someone, I accept that the rules are there for everyone’s safety, and stick to the speed limit.
The only issues I’ve had are on the same stretch of road south of Nottingham where there’s a misaligned 30mph sign on a 50mph road, and the repeaters as I enter a village which is 30mph.
I’m all in favour of this new development and am sure it will save lives.