It's a terrible tragedy for all involved.
It reminded me of a situation a few years back where I ran over some piece of construction equipment that must have been dropped from a freeway overpass they were working on. I was going maybe 65 to 70 at the time, 10:30 at night. It bounced up and ruptured my gas line. The car only had enough forward motion left to barely get me off the freeway from the far left lane (no left side breakdown lane) across three other lanes. It's a miracle I made it to the right shoulder without getting rear ended. Always get as far off on the shoulder as possible. If you get out use the passenger side door if you're on the right shoulder, and stay far away from the oncoming traffic. That's what I did while I waited for the wrecker.