Entrapment-- The act of a peace officer to induce someone to commit a crime not already contemplated by him/her for the purpose of prosecution.
On the first day of my AJ class this semester another student talked about an exzact swituation that you have described.
Its not entrapment, but its is speeding. You cant contest the speeding violation...well because you were speeding.
The failure to stop sounds kind of odd, did you come to a complete stop on the left soulder and then try to move to the right soulder....it just looks really bad. Like you were trying to get away