leds in c pillar

tattoo had them under his rear window on an S10 for a long ass time, non on the rear of his truck.

he was pulled over countless times for it. it's illegal because the law says "The rearmost part of the vechical."

i almost rear ended a guy that had lights light that, not only are they not at the rear most part of the vehicle, they kinda dont look like taillights on the pillars.