Consider also that any three strike system will impact people who drive more miles more often. So a population of more reckless but lower mileage drivers will be impacted similarly to high mileage drivers going speed limit +/- noise.
Anyway, I suggest looking at three-strike drug possession laws as a good example of how dysfunctional this kind of hard-on-crime legislation is in practice.
(Disclaimer: I don't speed)
Germany has one of the better/higher quality roads and highest speed limits in Europe, though.
They are way better than the awful concrete motorway that you can still find in germany
We did often drive on weekdays (but used public transportation in the three aforementioned cities P/B/H).
Do you think something dangerous has happened if you drive 70 on 60 when that's the speed everyone else is going and the city hasn't bothered to changed the speeds to match reality?