I think you know the answer to that. I think the only reason no charges are being pressed is because the fault is divided, BUT the governor was probably most to blame. I doubt there was any emergency, if so, we would have heard about it by now.
We had a similar type accident last year. A vehicle in the right lane had inadvertantly crossed over into the left, clipping a vehicle in the left. Vehicle 1 kept going thinking nothing had happened.
Vehicle 2 ended up rolling (news said 18 times). It was a LOT! As luck would have it, there was a state police car behind these vehicles and they got the whole thing on camera. The woman had some brokem ribs and a couple of other minor injuries but came out of it pretty good considering.
They finally tracked down the first vehicle and they just finished the trial. He was found guilty and got something like 18 months probation and some sort of fine I think. I just happened to hear the result in some news blurb.
They know it will be a major embarrassment to pursue it any further. What is disturbing is that they find an excuse to avoid prosecuting "Red" after all the talk of hit and run on his part. What if the guy was you or me? Would they be prosecuting? I wonder.