I'm sure you'll get the chance to volunteer if you have applied to do so, but you can still get a couple of rides in anyway. BV usually has bikes for vollies to ride when off-duty, and some vollies elect to ride and still do a vollie role when they get to each camp.
Of course, if you're all ridden-out, you don't have to ride, as there's plenty of social networking between vollies and others anyway.
Hope you have a great trip. I'm very envious!
Life is too short to bother with idiots