Informational signs such as: "entrance," "exit," "no parking," "visitors parking," "no hunting," "no trespassing," "keep off the grass," and the like, on the same lot as the use to which the sign relates or the prohibition of the use to which the sign relates, provided that:
(1) The area of said sign shall not exceed six square feet in area.
(2) Such sign shall not contain any advertising.
(3) The sign(s) comply with the provisions of the Manual of Uniform Traffic Safety Devices (MUTSD) of the Federal Highway Administration as appropriate.