You could always tour wineries in Temecula, about thirty miles north of San Diego.

http://www.temeculawines.org/taste/winery-listing.php

Or the OP could cut thru Lodi and visit wineries and vineyards. The possibilities are endless :p

Yikes what in the world is wrong with you?
Post back your royalness and plan the trip for the OP as only you can apparently do and we will all stop giving suggestions. :(