The cup is in SB or atleast it was last year. Don't go through LA. I don't know which way you go but my guess would be the 14 or 395. Take hwy138 through Phelan and connect to the 15 Freeway. It's only 1 hour 20 min to the Orange Show San Bernardino cup from Palmdale. That will bypass all the LA traffic. You won't have any traffic at all.
This will be the first year I'm not attending the Cup. Me and my girl would go every year but we are not together anymore because of LEO. Long story. Going would bring back memories. By next year, my memory will be fuzzy.
Another reason I'm not going is because I don't buy seeds anymore. It was a big waste of money. I have some packs left and when they are gone, they are gone. I'd rather buy a good single clone only for $500 than buy $500 worth of seeds. I'm not saying Pheno hunting isn't fun, it is! Gems are found all the time. I just make my own beans to find what I'm looking for. On top of everything else, everyone I know is running beans and it's easier to just snag the keepers. I hook them up for being lazy. :)