In once sense I agree. But it was dark, and we can assume he reacted quickly. These days how can you know?
I was out walking the baby yesterday afternoon when a mini-van (obviously mom's car) full of teenage boys drove through. I watched them stop and one of them threw a liquor bottle (I think it was actually a Bacardi's cooler from the broken glass I found) down in a drainage ditch. They were stupid enough to drive back through the neighborhood so I got the plate number and called the police. I had the baby with me, so I wouldn't engage them and I'm not sure I would've anyway.
But if I'd been armed, mom would at least have to be buying some new tires this morning.