I will taking the day off.
I'm thinking, we get on. Make our toons and plan to meet at several different times (in case the game goes down-opening day bugs and the like)
We could parade around the main plaza or whatever the central starting point is.
Unpaid costume contest
Sweep the streets clean of gangers.
Annoy the devs until they run 12 dev controlled giant monsters and sweep the streets clean of us.