the way it works is they can use radar if they have it, they can pace you which is really fun in a slick top (way hard to spot of they are not the inverted color cars without light racks, or if they see the flow of traffic with you blitzing through it they can also write you. so basicaly they can do what they want. my room mate got a ticket for excessivly loud music fought it and lost i laughed at him for days.