Any of I-25 that runs thru Commerce City, which is on the north side of Denver. They will throw out a single orange cone, have a single sign way on the side of the road and the speed limit immediately drops 10mph. A state patrol sits there and pulls people over one, right after another. The city offered to drop all points if I paid within a certain number of days, but the fine (for less than 10mph over) was $360! I’ve spoken to several people who have been caught in this trap and I drive thru this area all the time, there are troopers all over looking to pull someone over.