I do this as well. Modern police radar is mostly automated and probably gets speed information from the same place Google Maps does. Cops simply don't care, it

I do this as well. Modern police radar is mostly automated and probably gets speed information from the same place Google Maps does. Cops simply don't care, it's just "speed gun says ticket" and while your friend would have beaten it in court, they still would have been forced go to court in the first place.