One reason that I will use a radar detector with super long range [Uniden R7], Highway Radar, Waze to discover cops ahead of me. Heck, I have even downloaded all of the Waze data for a 3 month period, dropped it into a database, did some spatial magic and can produce a map of all speed traps across the US and Canada.
Example
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One of the reasons that I picked the color of my car is to blend into the pavement and be less noticeable. Plus my car has the smallest radar cross sections of any vehicle on the road.
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