Delaware has several towns which were notorious for being speed traps. On went from 55-45-35-25 in a 3/4 mile stretch and back up to 55 in likewise steps after a stoplight in between. And they strictly enforced the speed limit. If you were not going exactly the posted speed limit or less until you reached the next speed sign they wrote you up. So just because you could see a sign for a bit higher speed you could not speed up until you got even or past the sign. A lot of people got nailed on that.

One town was so bad they had 20 mph zones then 25, then 30. One mph was enough to get you a ticket. And the money was divided up between the court and the town(police) so no conflict there. For all I know they are all still speed traps.

AAA use to warn members which towns were traps, when you used their trip map services. They had flip up maps which were bound at the top. Each speed trap
would be colored in purple. When family was coming in from out of state, I always sent them a trip map, with the highlighted speed traps. Better that than hear them [censored] about a ticket for the entire visit.