On my commute home, I was heading down a long decline (several miles) into the valley. The 9500i alerted to Ka, have it in expert mode so don't know the frequency (Escort needs to work on that). I immediately noted the mileage on my speedometer and kept my eyes peeled. Well, two miles later I see a NYS Trooper with a non-paying customer on the other side of the road. He was helping change a flat tire.