In Nevada along I-80, there are some things you should not do - radar detector or not. When within 3 miles of a "major" town (if you can call them that), slow down to 80. About 90% of NHP units are just outside of town, perhaps 5 miles out. It is rare to see them in the boondocks 30 miles out from their home base.
Case in point - I was driving just a few weeks ago eastbound I-80, cruising along at 92-ish and another car close by making the same pace. We were 3 miles from Winnemucca and I slowed to 82 or so, but my "partner" car who was with me for the past 20 miles did not slow down. I was thinking to myself, "that's risky". About 15 seconds later I see a NHP car crawling out of the center divider brush and snag him. (Instant on, of course). 90% of the time they are NOT in the open desert, but on the flip side, 80% of the time they ARE lurking within a mile or two from the first exit.