I can't stress enough - IMPACT TOOLS WON'T WORK ON FRONT AND REAR WINDOWS - and in some cars, they won't work on side windows.
I forgot about that. My wife's car one of the selling points was safety grass in the side windows (as well as the front).
Note that AFAIK, "safety glass" is not a specific enough term. My understanding is that could mean either laminated glass (like the front), or tempered glass (the kind that breaks into lots of little pieces).
Laminated glass would be the one to ruin your day if submerged.
-john