They spend a lot of time trying to smash out the windshield.
I have ZERO experience with that, but after seeing that video I suspect even the Life Hammer (which I carry in the compartment between my seats - plus a ResQme on my keychain) would not have helped much with the windshield. He was really struggling to clear it even with a large iron pipe.
Advice from those who've been there?
The Life hammer would not of helped much for the windshield. Windshields are laminated glass, you have to cut through the lamentation to remove the glass. The side and back windows are safety glass and will shatter when struck right.