Since I'm bored tonight I thought I'd share my experience with ya... 
A few weeks ago I bought a cheapo radar detecter from the Hot Deals forum and thought it'd be cool at least for the compass. So I've been using it whenever I drive around...
Tonight I was coming home from my friends and had just pulled onto the highway and getting up to speed (limit was 45 mph) and my radar detector said "Instant On." I had never seen this, but I read about it in the manual (thankfully) and knew that I was being tagged. Luckily, however, I had just started accelerating (sp) and was only at around 42mph when the radar detector went off. So I stayed under the speed limit and sure enough there were two sherrifs about 100 yards ahead of me just sitting in the middle of the median with their lights off. I almost wanted to wave.
So... the moral of the story?
Something that you might think is junk, might turn out to be precious. 
A few weeks ago I bought a cheapo radar detecter from the Hot Deals forum and thought it'd be cool at least for the compass. So I've been using it whenever I drive around...
Tonight I was coming home from my friends and had just pulled onto the highway and getting up to speed (limit was 45 mph) and my radar detector said "Instant On." I had never seen this, but I read about it in the manual (thankfully) and knew that I was being tagged. Luckily, however, I had just started accelerating (sp) and was only at around 42mph when the radar detector went off. So I stayed under the speed limit and sure enough there were two sherrifs about 100 yards ahead of me just sitting in the middle of the median with their lights off. I almost wanted to wave.
So... the moral of the story?