The neighborhood watch meeting seems pretty standard; they did the same thing when we lived in Lakewood and had the shooting at our apartment complex. It's a feel good measure to make the tenants think that the police are actually listening to what they have to say, and nothing ever changes out of it. I really don't think it has anything to do with the OC barbeque, but if it's something you want to bring up and have some backing on, I think a few people could manage to make it.
Sounds like it's more for the neighborhood around there though; I'm not sure how they would react to people coming in from out of town just to push the idea of the OC barbeque. Maybe it's something more that needs to be pushed directly with the management, and they need to understand what we're about. We've never had any problem with any of our OC get togethers, and I don't see any problem with this either. The management just needs to be convinced of that, and if they are already saying go ahead with the BBQ, it shouldn't take much to put their minds at ease.