From Consumer Wiki
Adult entertainment business, adult bookstores, theaters, arcades, hotels/motels, cabarets and massage parlors are regulated and licensed by city and county planning and zoning commissions. Consumers should check the government page listings in the white pages of their phone directories for the phone numbers to their local city and county offices.
Complaints about prostitution or vice should be made to the local police department.
For Sacramento County:
Planning and Community Development Department
827 7th Street, Room 230
Sacramento, CA 95814
(916) 874-6221 (general information)
(916) 874-6400 (fax)
Email Address: firstname.lastname@example.org@saccounty.net