Is that actually what the zone a cop will not write a ticket for on the highways in NY?
I always thought it was 10% of the speed limit, so theoretically round up to 7 mph at 65 mph, ensuring you would not get a ticket for going 72 but might get one for going 73. I forgot where I heard or read that but I always believed it to be true and will normally set the cruise control at 72 mph on the NYS Thruway to avoid being ticketed.