16.70.740 Acts Prohibited.
Between the hours of 9 p.m. and 5 a.m. of the following morning, no vehicle may pass along or across a traffic congestion thoroughfare, designated as such by signs as described in Section 16.70.730, more than two times.
Sec. 11-50. Throwing missiles at vehicles. It shall be unlawful for any person to knowingly project any missile at or against any vehicle or equipment designed for the transportation of persons or property. (Ord. No. 21-1999, § 12, 11-17-99
Picture thanks to: JAW-SHOE-WHAH
This is part of the Public Health (Control of Disease) Act 1984, sections 33 and 34: Public Conveyances. An interesting discussion regarding this law (and a few others) can be found here.
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)