I was driving southbound on I-5 just south of highway 512 and saw an unmarked silver Charger with some poor soul pulled over. First unmarked Charger I've ever seen. I didn't get a good look at it but I couldn't spot any external giveaways to it being a cop. No spotlights or big antennas or pushbars or anything. The only clue visible was the lights flashing in his rear window which obviously aren't visible until it's too late. Keep your eyes open!