I just got email notification of this race in San Diego.
It looks like you can try to race it or volunteer to be made up as a zombie and harass contestants. I wasn't going to race anymore until the fall, but I am sorely tempted.
Check it out.
Oops! I also forgot to welcome Shelldrake. His friend connect doesn't mention it but he has a couple of blogs. The one I like the most is his Play By Blog (PBB) one Shelldrake's Zombie Wargame Blog.
Check it out also.