Safest way to drive technically is with the flow of traffic. (ie, up here M1 110kmh zone, a lot of people do 120kmh, not all that smart to do 100, as you then become a hazzard, same deal with doing 140kmh, going faster you become a hazzard)
So had you been done on say the M1 doing 120, then yeah fair point cops suck, even tho they are just doing thier job.
Over taking a number of cars, where the speed limit had just changed (normally a reason for this...) isnt so safe. Fair suck of the sap mate.
Just learn from the mistake.