HOMELESSLAND: The latest comment on Orange County's culture comes from a new play called "Food and Shelter" in San Francisco. . . . In it, a homeless family resorts to living overnight in Disneyland. L.A. playwright Jane Anderson says the ironic premise of misery in "the Happiest Place on Earth" is to be taken seriously. "Disneyland is to American culture what Greek mythology was to the Greeks. It's the ultimate utopia."