We recently had the misfortune of driving through Dubois, WY on our way home from the Grand Tetons. Most of the small towns along this route (US26/US287) have signs warning drivers as you approach the town that a certain speed limit will be in effect within 750 feet. Dubois goes further, having three consecutive speed limits (two inside the town) requiring drivers to slow down from highway speed to 30 miles per hour. i doubt that they were 750 feet apart.
As I entered Dubois (a town of less than 1,000 population) I was behind two other cars, all of us going the same speed. The road through town was wider than a four lane highway, not the narrow "main street" most of us are familiar with in small towns. I don't know what the speed was all three cars were going, but doubtless it was in excess of 40 mph. Being the last car in line, I was singled out by a police cruiser who had followed us from the city limit line on (less than half a mile). I received a $125 ticket for "speeding 45mph in a 30mph zone," which was "...reduced from 52mph," a speed at which i do not believe i was driving.
The bottom line of this experience is my belief that Dubois has set up a classic speed trap in their small town, and are probably raking in the dough. As further evidence, I suggest you check out their website, which i believe is a very high end product, hardly what you'd expect from a town of Dubois' small size. The website shows that there are enough clubs, committees, associations etc there to make a city of 25-30,000 proud.
Be careful in driving through small towns off the freeway in Wyoming--especially Dubois.