A. 
No person shall park any motor truck, trailer, semitrailer, trailer coach, truck tractor, or commercial vehicle, except pickup trucks, for more than four hours on any county highway, or move and re-park such vehicle on any county highway within 300 feet of the original parking site within any 24 hour period.
B. 
No person who owns or has custody of or control of any vehicle, except those restricted in subsection A of this section, shall park or store such vehicle in the right-of-way of any county highway for more than a consecutive period of 72 hours. The term "vehicle" means a vehicle as defined in the California Vehicle Code.
C. 
No person shall park a vehicle within the right-of-way of any county highway for the principal purpose of displaying such vehicle for sale.
D. 
It is unlawful for any person to stand or sit or to have, erect, place or park, wholly or partly within the right-of-way of any county highway or designated car pool lot, any vehicle, motor vehicle, trailer, semitrailer, wagon, pushcart, stand, structure, or building for the purpose of selling, vending, displaying for sale, or offering for sale, therefrom or therein, any goods, ware or merchandise, fruit, flowers, vegetables, produce, or any other article or thing of value.
Any such vehicle, motor vehicle, trailer, semitrailer, wagon, pushcart, stand, structure, or building so had, erected, placed, stood or parked for any such purpose or purposes, and any such sales operation, is declared to be a public nuisance and shall be removed forthwith from within the right-of-way.
(Prior code § 16.97)
Upon approaching any entrance of a highway intersection signposted with a stop sign, it is unlawful for the operator of any vehicle to fail to bring such vehicle to a complete stop immediately before entering upon such highway or into such intersection.
(Prior code § 16.325)
The board of supervisors shall place or cause to be placed signs for the designation of the provisions of this article, and no provision of this article, for which signs are authorized and required, shall be enforceable, if, at the time of any alleged violation thereof, the signs were missing, effaced or mutilated, so that an ordinarily observant person would not be appraised of, or aware of the existence of such provisions.
(Prior code § 16.330)
If the signs required by this article are actually placed or in place at the place hereinbefore referred to and described, it shall conclusively be presumed that they were so placed and put in place by the board of supervisors.
(Prior code § 16.335)