Oh yes, wrenching parties generally start mid to late morning to

[mit-eddie!ucscc.UCSC.EDU!red4est!lrcrace@EDDIE.MIT.EDU (so I can get e-mail for cars)]

early afternoon.  Depending on how late people crawl out of the sack,
load up cars etc.
   LRC
PS, that evening there is also likely to be a beach party happening at 
Bonny Doon Beach, Which is about 10 miles away by VERY twisty roads.