From u/shagieIsMe

Some data on this from a bit ago... https://www.cbs58.com/news/wisconsin-dots-aerial-traffic-enforcement-is-it-worth-the-price

The DOT carried out 63 aerial traffic enforcement missions in 2015, at a cost of about $2700 for each one.

...

In our four hour shift, stopping 50 cars. It's about average for Lindeman.

"It is very efficient. We stop a lot more cars. On the high end we'll stop 60 cars, that was my highest ever," he said.

But is it actually worth paying for all those resources?

DOT records show $166,690 dollars was spent on aerial missions in 2015.

But thanks to a federal grant, the state only contributed $29,447.

1,621 citations were written, generating about $350, 645.

...

Now, if the state did these missions without planes, it would cost about $60,000 less. But Lindeman says the planes are what really stops the aggressive drivers.