Would make a great "truck" gun for self-defense and such. I can't imagine trying to conceal carry one!
They also have a 4" version available which I think would be a much better choice.
On a side note, I can't imagine how bad it must have hurt that guy to shoot it in the truck wearing only ear plugs!! I am assuming he was wearing plugs even though you can't see them as he does that all the time on the show. That would call for plugs and muffs if I were to do it outside of a life or death situation.