Finding good rides up that way can be a bit of a challenge. When I was at UCLA I did a lot of hill work as the best rides with the least amount of traffic were through the canyons. My favorites were Latigo (up Mailbu way) or up Topanga. Those probably aren't be best options for Tri bikes.
It's really tough out here to find long stretches with no lights...try PM'ing 55/Rad...he used to live in the Valley so he may have some good suggestions.
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Fredo, you're my older brother and I love you...but don't ever take sides, with anyone, against the family again...ever.