Parked along industrial streets, tucked behind warehouses and clustered in residential neighborhoods, thousands of Bay Area residents are living in one of the only forms of housing they can afford: RVs. Across California, the number of people living in vehicles has surged in recent years, as soaring rents and a chronic housing shortage have pushed even full-time workers out of traditional homes and into makeshift ones on wheels. In Santa Clara County — home to Apple, Google and eight of America'