Satellite Auto Body Shops on Residential Streets?

It appears that Pico auto body business is spilling into residential neighborhoods. The scene above (on Sierra Bonita Ave. between Saturn and Pico) is illegal in Southern California. Restricted or Preferential Parking for residents would abate if not eradicate this growing problem. Several streets such as Carmona, Curson, Stanley, and Ellsmere either have Preferential Parking in effect or are pending. Comments are welcome.