(1) Any owner or occupant of a private residence may post a plainly visible sign at its principal entrance bearing the words "NO SOLICITORS" in letters at least one and one-half inches in height.

(2) Any person who solicits at a private residence where a sign is posted in accordance with subsection (1) of this section is guilty of a violation.

(3) The term "solicit" as used in this section means to go on the premises of a private residence for the purpose of selling anything of value without having been requested or invited to do so by an occupant of such premises.