I'm confused as well. You were on 581 Southbound and came to the elm ave. ramp where you made a left at the light, correct? The officer was sitting at the light on the elm ave bridge facing comm. hospital?

If I remember correctly, the light is on the other side of the intersection and from that angle the officer can easily see the what color light you have.

When you went through the light the cop made a u-turn and pulled you over? Were you sitting at a red light on the ramp or was it green from the time you pulled on the ramp?