On 11/16/15 at 4:45 p.m. near 338a Main St., a Hackensack Police Dept. patrolman in car #107 slowed his vehicle down to text on his computer which he had positioned on the passenger side of the vehicle. While using his right hand to use the computer his left hand was on the window slot of the driver's side door. Keep in mind now that no hands were on the steering wheel and the patrol car was still in motion. When I mentioned to the driver "no texting while driving officer." He then turned to face me and stated "*******." Then he drove away. This was the most unprofessional act of an uniformed officer that I have ever witnessed Here