lately i've seen a few laser traps on the milwaukee county freeway system. the officer will often times sit just over a small hill (just so you cant see him) with a laser gun. they sit with their back against their open drivers door on the left shoulder of the freeway and nail people that come over the hill from a pretty close range. so far i've seen one like this with a PLIII and one with an Ultralyte, so watch out!