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.
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 - firstname.lastname@example.org@saccounty.net