Fla. Stat. § 479.12

Any person who willfully or maliciously displaces, removes, destroys or injures a mileboard, milestone, danger sign, signal, guide sign, guidepost, highway sign, or historical marker or any inscription thereon, lawfully within or adjacent to a highway, or who in any manner paints, prints, places, puts or affixes any advertisement upon or to any rock, stone, tree, fence, stump, pole, mileboard, milestone, danger sign, guide sign, guidepost, highway sign, historical marker, buildings, barns or other object lawfully within the limits of any highway, shall be guilty of a misdemeanor of the second degree, punishable as provided in s. 775.082 or s. 775.083.