Cocktail Attire. We'd recommend bringing a warm jacket as it may be chilly during the ceremony, depending on whether the sun cooperates with us.
It's definitely possible. Weather in January is in the mid 50's and we'll be outside for the ceremony, so a warm jacket is recommended. Dinner and reception will be in a heated tent and indoors, so you should be just fine from around 4pm on.
Yes, there is dedicated parking in front of the venue. The road is narrow and winding, so to ensure everyone has a safe travel option we will have a return shuttle stopping in Redwood City and San Francisco.
Uber to the venue should not be a problem, but we've heard that Ubers often cancel for late pickups because of the relatively remote location, so we'll have a return shuttle available (see Parking FAQ above)