For those still without plans for tomorrow, the Huntington Beach Concours d'Elegance's might be of interest. There seems to be a small bike section along with the cars and motorcycles.
I've never been to the show before but am looking forward to my first visit; along with the family unit (and a couple of bikes). They don't seem to promote the event very well as I only inadvertently found out about it last week. Might be fun to invade it with a large CR contingent next year.
Full details at: http://www.hbconcours.org/
..and some photos from prior years at:
Cheers from sunny Huntington Beach, CA - USA