My experience living and riding in Texas seems to have most cops lying in wait under a shade tree or cruising down the highway with their radar always on. Piece if cake. I slow down and everyone is happy.
On super straight roads out west such as Highway 50 riding across Nevada is a whole new situation. You are riding on a perfectly straight road where you can see for 40 miles front or back and may not see a car in either direction for 30 minutes. There in lies the problem. You might have one state Trooper who has to patrole for a hundred miles each day so basically he's riding towards you from far away and won't throw it on until you both are closing in real fast. After all, there just aren't many cars out there.
The think the key is to be vigilant of the profile of the oncoming cars to read if it could be a cop and even slow down until you can get a good visual. You can't tell here, but the front of this pick up truck has blue and red lights flashing in the grill and strobe lights on the strobe lights. The light cluster on the roof should have been a give away, but he had been coming from far away and it was my first time with "instant on".
This is after he threw on the lights and did a U-turn to give me a ticket. His lights are all flashing here , but the photo doesn't show it.
There was so little traffic, I asked him if he minded if I took a picture and walked across the street standing in the oncoming lane holding a conversation with the guy while he had to fill out forms.
I was doing 90 in a 70 when the radar detector went off full blast and the engine braking wasn't quick enough. He ended up writing me what he termed a "warning", 75 in a 70 and no points. Just mail a check to Nevada for $67.