I found some guys who were selling a kit. I installed mine a few months ago. I got it from www.grab-gard.com. so far so good. But I'll report back when I have more miles on it.
Did you go with exoshield? How did it go? They don't have many dealers near me, plus it was a lot more expensive than...
I looked into lamin-x, but people were complaining that it wasn't very clear, that it really was only meant for headlights, paint, etc, not for windshields.
I ended up buying a kit from www.grab-gard.com. It was a self install that was pre cut. It took me under an hour to install.
Oh wow, that is a really hard hit from something. I'm glad everybody is ok, that is scary that it was so bad that glass pieces were coming into the car, it sounds like whatever it was was on the verge of coming all the way through.
I'm not sure if it would have helped with this big of a hit...