P ush, shove, run, jump, or throw objects within the vehicle. P lace anything on the floor that may roll or move when unattended, including but not limited to skateboards, roller skates, balls and strollers. T ransport any material, object, or equipment that will not fit into the vehicle's forward compartment. B ring any animal of any type on the vehicle, except as authorized by law. P lay any radio, tape recorder, or other electronic device except through earphones.
M ake any marks, etchings, cuts or otherwise deface or damage any part of the vehicle.
L eave any offensive materials or refuse on the vehicle or place any signs, posters, bulletins or other materials inside or outside the vehicle. C arry onto the vehicle any object that could cause injury or damage to others, including but not limited to guns or other firearms, hazardous materials, knives or other sharp instruments or tools. V iolate any law or regulation including California Penal Code 640.