(a) No person shall operate or park any vehicle or trailer, except as provided in Section 1393.12, on a public right of way or public property so as to be visible from a public right of way, which has attached thereto or located thereon any sign or advertising device for the basic purpose of advertisement of products or directing people to a business or activity located on the same or nearby property or any other premises. (See Figure 23 in Chapter 1387).
(b) This section is not intended to prohibit any form of vehicular signage such as a sign attached to a bus or lettered on a motor vehicle unless the primary purpose of such vehicle is for such advertising.
(1952 Code § 43-8-5)