Driving down the interstate with NOA, no one close by in front or behind me, in the right travel lane. Not near an entrance or exit ramp. A State trooper had someone pulled over on the right shoulder but plenty of room to pass him staying in the right lane if I chose to. As soon as I spotted the light from the police car, NOA suggested moving to the left lane. Is that a normal NOA behavior when seeing police lights or just a coincidence? First time I can recall that happening.