traveling east in semi-truck with GPS technology was written a speed citation supposedly radar enforced for 82, however gps read back supported my 58mph claim. later in court, the judge ruled in my favor, citing the state trooper could not show any evidence that his radar had been calibrated within one year by any certified person to calibrate such speed measuring device. He could not make a showing that the radar device had been properly installed by certified technician…Not Guilty yet spent big bucks to appear at this obvious speed trap hearing