License Plate SIGN in California, United States

Blocked Driveway & Illegal Parking at Intersection Of Annie St & Stevenson St. Green vehicle with license plate CA SIGN Is a private business (palace hotel) allowed to print signs saying they own the exclusive use of the commercial yellow loading zone on annie street?

Blocked Driveway & Illegal Parking at 1140 7th St. vehicle with license plate CA SIGN [other] blocked bicycle lane

Blocked Driveway & Illegal Parking at Intersection Of 7th St & Hubbell St. vehicle with license plate CA SIGN [other] blocked bicycle lane

Blocked Driveway & Illegal Parking at 1200 Kansas St. vehicle with license plate CA SIGN [other] blocked bicycle lane

Blocked Driveway & Illegal Parking at 200 Cargo Way. None vehicle with license plate CA SIGN