Story: Changed from the right to left lane in the middle of a two lane, photo enforced intersection. A bus stopped right after it got through the intersection on the right side, leaving me trapped in the photo enforced intersection. I moved to the left and safely merged into traffic, but the photo light went off. I definitely feel like this could be coincidental, as something else could have caused it, but I just wanted to see what your thoughts were on the subj. I've read up on this, and in Cali, it doesn't seem theres a black and white definition for even doing this in general, as long as its safe. Definitely NOT recommended for most reasons, but I feel mine was justified. I thought these photo enforcement zones were typically designed to catch red light runners, and speed violations, but again, here I am asking the question. Any info appreciated.