Having been a first responder to auto accidents and other incidents (I'm certified in CPR/FA, but don't do it professionally), I'd say staying out of the way in this situation was probably the right thing. I might have gone over the scene after they were done and checked for a camera or similar item in the debris, but other than that, I would stay out.
If you witness it, or are the first on scene, that's a totally different situation, obviously.