No outdoor advertising signs, displays or devices shall display copy which violates any federal or state law, or which is offensive to the moral standards of the community at the time the copy is offered for display, or which is false, misleading or deceptive.

42 Del. Laws, c. 182, § 10; 17 Del. C. 1953, § 1109; 53 Del. Laws, c. 87, § 1; 57 Del. Laws, c. 276.