do. Just like ouikikazz said if the officer had a decibal meter then he could issue the ticket with it standing in court. If he didnt you could fight the ticket and come out on top. Its also a way to pull you over to see if you have any out standing wants/warrents when he runs you DL. I suggest you fight it. I would. Also grab the information from Greddy stating that thier product is legal. Just mors weapons for your arsonal, if you want to fight it.