(Edit: Don't act like you wouldn't do the same.)
As much as I hate to say it—after reading the article—I'm siding with DeSatan on this one.
If I ever end up getting caught in the middle of a protest, and people are surrounding my car in an attempt to damage it or injure me—I don't care if I agree with the protestors or not—I will do whatever is necessary to protect myself and my only form of reliable transportation.