11:30 pm my Son and I were being picked up at the airport by my Husband. We were relieved to be on our way home. We got off of Pena and went north onto Tower road toward 104th. Once we were on Tower it was dark and not well lit. With no visible speed limit signs we went with the flow of traffic. Unfortunately we were the last car in the flow. A police officer who was sitting in the median on the other side of Tower was waiting patiently for a break in the traffic on our side to obviously pull someone over. After we passed the police car the officer quickly made a u turn and got behind us in the turn lane to go westbound on 104th. It was after the turn that the officer pulled us over and gave my Husband a ticket. This happened around midnight. The travel weary are especially vulnerable because they just want to go home. It was a unnecessary stop and clearly a form of entrapment.