Yeah, about the same total distance, but I think there's generally less traffic coming from the north. In any case, he just has to make it to Larkspur, as the ferry takes him directly to work. Needless to say, he's eagerly awaiting the SMART train.
Oh, my bad, thought he was crossing the bridge. My BIL goes from Corte Madera to San Bruno and I think it's just eye-poppingly insane to have to cross the bridge AND drive through SF. The traffic north of CM on the way up to Santa Rosa is simply insane, so adding the bridge to that would be killer. The ferry makes it work.