It's possible that was mine. I was traveling 24 E 2 Fridays ago on December 8th at night. There are four giveaways on mine.

1. I have the Rear Fascia's on mine
2. My XFi Decal is located under my spoiler
3. I've got tinted window's
4. Taped to the inside of my back windshield there is a NSCC parking sticker.

In order to see all of these you've got to be close to my car.

I believe Radar Detectors are legal in Tennessee, but don't quote me on that. I don't use one, I've never found one that I thought didn't look tacky in the cockpit.