The incident in question was making a lane change across a solid white line. In this particular spot, the lane was marked for trucks and the lane exited to a weigh station. (Similarly to like most off-ramps in California (not sure about other states), the dotted line between lanes changed to a solid lane x number of feet before the lane split off.) Because of the heavy traffic (Friday night rush hour), she was not able to safely change lanes before the solid line started. Most weigh stations that I have seen have signs prohibiting private vehicles. I am not absolutely sure about this particular on- need to do a drive-by and check the particulars.
(Oh, and the guy the cop took off after while he still had her license was pulled over for the same offense.)
So depending on the actual situation, she may decide to try to fight it. So was just wondering if pointing out the excessive wait to the judge would hold any positive or negative sway. Obviously, it often comes down to the specific judge. But if there was a specific law/policy prohibiting (or allowing) the cop to take off while in the middle of writing one ticket would also influence her decision to bring it up or not.