I'm not sure if it works that way, at least for me.
I've had this update for a while now, and on the exact same spot, where the limit is 80km/h, it drives 70, even though this is a wide open straight road. And only at this spot and nowhere else. In general, it does drive above the limit if my Max Limit is above this level, by about 10% which is fine when I'm not in a hurry.