Laser Interceptor Dual, Laser Interceptor Quad, Valentine 1 & The Escort 8500 X50 - Blue, Uniden BC296D, GRE500, Lasershield, 2011 Kia Soul +, Yamaha FZ6, 2005 Black Dodge Neon SRT-4,
They do that here in Utah in a couple of small towns. One even has a dummy LEO sitting in it.
I don't know if the residents complained about the traffic or if they did it proactively, but they took the older Crown Vics and sat them in various locations and moved them around to keep it interesting. Some of them made sense - right next to the timing marks they use for speed enforcement, but sometimes they would just be in people's yard's somewhere.
They had blow up dolls in them, too. They were made to look like police officers but that's basically what they are.
I felt like a real dumbass after I realized the cops were fake - I had been frantically flashing people my lights for over a mile after passing them.