Did they?

Of course. There is no money in it for them. Speeding traps and fines are government revenue stream. It is the modern version of highway robbery.

They are doing that in FL, too.

Supposed to is the operative word. When they did so on my business's property, I told them to move along.

On being stopped at a police checkpoint...

In all my years I'd only been stopped at one, once, during daylight. Then recently I was stopped at one in the night time. I had understood there were certain rules that one should follow when stopped by the police:
1. Stay in your vehicle.
2. Do not move your vehicle.
3. Follow any instructions.

I was driving my pickup truck and horse trailer, and saw some sort of police action ahead. I could not identify what it was, so I stopped far enough away that I could successfully turn around if I needed to. Reversing direction of a horse trailer on the road at night is quite difficult.

I saw a lot of flashing lights. One was a light apparently held by a policeman.

It turns out that the officer was moving the light "beckoning" me to approach. Thus, in his mind, he was giving me a command. As I could not tell that he wanted ME to do anything, I remained where I was, expecting instructions.

The officer eventually walked to my truck and was very angry. "I could have you arrested for making me walk all the way back here. Haven't you ever been through a checkpoint before?"

I should have said, "Not at night, sir," but instead I said that I once had been through one.

So the rules actually are, "Follow the officer's instructions, even if you do not hear, see or understand them."

I later asked an off-duty cop about what happened, and he said that I had been "suspicious" by stopping so far away. "They think you are going to turn and try to evade the roadblock."

Heck, if I tried that they could shoot out all 10 of my tires before I got a quarter of the way around. Then of course all of us (me and the police) would have to figure out what to do with the horses.

So remember, Read The Officer's Mind.

Their regular tax receipts are still down.

I make 1 or 2 trips into Illinois each year. I saw more state police last week in constructions zones than I have ever seen in all trips that I have made to the state combined. Heard they like to pick out of state vehicle to pull over, even if your driving slower than Illinois traffic. Guess they found the easy way of bringing money into the state.

They're supposed to do that only with the permission of the property owners.

They sure park in private parking lots enough trying to catch speeders.

Parking lots aren't their territory unless there is injuries or some other crime, like hit and run and know got the license.

The cops have been out in force ticketing speeders this year like no year I have ever seen, at least double of any previous year. On the other hand, my daughter was at fault in a minor fender bender in a parking lot, and the cops weren't interested.

It was. Glad you also saw it!

I saw it the other day. It's very good.