Being pinned against the wall is getting close to the line for me, but I wouldn't get out of my car to leave my daughter in there. If the guy got out of his truck with some weapon, AND I couldn't get my car out of dodge, then I'd consider drawing. However, I would never have been in the same situation given these same facts, because I never would have allowed (nor assisted) in letting the situation escalate like this. Being aggressive is welcoming trouble, not avoiding it. I'm glad the truck driver also got attempted murder.