....but there certainly should be. Driving above the speed limit, the safety partnerships tell us, is unsafe, therefore dangerous. In many circumstances, particularly the ones they seem to target, this really is the real "bollox"
There are many places where driving above the limit is dangerous. But these are not the favourite targets of the partnerships, as presumably the proceeds would be rather low, as many drivers drive at a sensible speed, which may mean driving above or below the speed limit, depending on the real circumstances.
Driving at a reasonable speed, even if slightly above the limit, should not be targeted, if the road type and conditions at the time mean it is actually not unsafe to drive at that speed, particularly if there are other places where driving above the limit is significantly more dangerous.
If the technology was aimed at the lunatics (which would be so easy), it would get total support from the vast majority of motorists, no matter how underhand it was, and would actually result in a real improvement in road safety.
Prosecuting sensible driving at 35 in a 30 limit on a non-residential, non-pedestrian, wide, straight dual carriageway is just a total own-goal for the partnerships who have totally destroyed their own credibility.