You've got to click the "Let's do it!" (that's what she said) link on the Wikipedia site-wide banner, saying you live near San Francisco, and you're available to help them.
Then notice the drop-down menu on the question "Have you ever contributed to Wikipedia?"
Notice how you can't even read all the answer options, since they exceed the margins of the drop-down menu box?
Great job, WMF. The quality control continues to amaze me.
If anybody does actually get into this thing, make sure you take a ton of photographs while you're there, and give off the impression that you've only been out of your basement a few times this year. Whatever you do, don't play it straight. Wear a feather boa.