Google has data for that traffic. btw, at that time, you’ll have zero issues….more people coming down to SD than going up to LA on that day.

Here’s the google prediction:

http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=orange+county,+ca&sll=37.509726,-95.712891&sspn=50.132427,114.169922&layer=t&ie=UTF8&ll=33.646636,-117.729492&spn=0.83455,1.783905&t=h&z=10
then click “Live Traffic Change” then set to date and time.