Section 810.11 - Placing signs adjacent to highways; penalty(1) All persons are prohibited from placing, posting, or erecting signs upon land or upon trees upon land adjacent to or adjoining all public highways of the state, without the written consent of the owner of such land, or the written consent of the attorney or agent of such owner.(2) Every person convicted of a violation of this section shall be guilty of a misdemeanor of the second degree, punishable as provided in s. 775.082 or s. 775.083.ss. 1, 2, ch. 13801, 1929; CGL 1936 Supp. 7433(1); s. 892, ch. 71-136; s. 37, ch. 74-383; s. 24, ch. 75-298; s. 188, ch. 91-224.