I find along as your not driving like a complete tool, and your driving speeds are appropriate for the conditions with traffic etc the police don’t even bother you, I’ve overtaken police a few times at the set cruise control of 78mph and don’t bat an eye. As long as your keeping a safe distance and not up people’s back sides and not lane hogging alot of the time they won’t have any issue with you. And from what I understand they won’t tend to do anything because all speedos are off, from what the actual speed is and they need to give some leniency because of that.