10.32.010 Vehicle watching or guarding prohibited. It is unlawful for any person to solicit the privilege of watching or guarding a vehicle while parked on the streets of this city. (Prior code § 21-19)
There was a court case involving a woman who got a heel of one of her shoes caught in a sidewalk grating, fell, and injured herself. The city subsequently passed this law in order to protect itself from future litigation.