The judge also accepted Mr Borrows had valid reason to be concerned for his passenger's comfort, if not her safety and rejected evidence from a protester that the car sped up as it approached them.
Ms Lockett claims the police obstructed the course of justice and a proper prosecution of Mr Borrows and "strongly request an inquiry into the management of the prosecution case by the Wanganui Police" and one of its officers.
In a letter to the Attorney General Ms Lockett alleges the police made little effort to establish their case, failed to collect evidence and did not attempt to ascertain the speed at which Borrows was driving.
"All in all we are convinced that the police did not pursue this prosecution in a professional manner. In fact, we are certain that they actively obstructed the course of justice and we ask that you thoroughly examine their actions, this entire case and how this affects the judge's decision," Ms Lockett wrote.
She is also seeking a retrial.