I'm going to have to try REALLY hard to convince myself I shouldn't delight in it. I share Shaw's skepticism that this is legitimate. On the other hand, I can certainly see a bunch of self-righteous animal rights nuts doing this. And the old VW van is a cliche that makes me suspicious. But the response is about what I'd expect; no real violence but sure gets the point across.
Yes, if this is confirmed, I SHOULD soundly condemn this behavior. Of course, laughing at this the way I did was probably something I shouldn't have done either.