How long till he pulled you over?
If he lost sight, claim mistaken identity... in court claim this, and make sure the officer admits to losing sight, be sure to remind him of the other car going that fast that passed you like a bat out of hell almost running you off the road. Also, do not admit you saw him turn on his lights, say you saw him come at you with his lights on. Hence the fact that he turned them on for someone else.
Worked for me last year in NC and again in CO this year.