Well, I pulled in at 5PM precisely (which, you might note, is when the permitted protest started, and when the counter-protesters showed up, and when the speechifying started). And all the action was in the park.

So I guess what you saw wasn't "official", any more than the nice folks who went black-bashing last November weren't "official" anti-Prop 8 folks.

Seriously - pick a standard. Just make sure you're willing to live with it.