I got pulled over and got a ticket once because I was listening to rap music while driving and an undercover cop next to me kept flipping on his siren (but not his lights) to tell me to slow down. After warning me 4-5 times and me not slowing down he finally flipped on the lights and pulled me over.

I told him I thought the siren was in the music and I would have slowed down otherwise...but he didn't care wned: