Ind. Code § 9-21-4-4
A person may not place, maintain, or display upon or in view of a highway an unauthorized sign, signal, marking, or device that:
(3) hides from view or interferes with the effectiveness of an official traffic control device or a railroad sign or signal.
[Pre-1991 Recodification Citation: 9-4-1-38(a).]
As added by P.L.2-1991, SEC.9.