The provisions of §§ 31-3-23, 31-3-28, 31-3-30, 31-3-33, 31-3-34, 31-3-36, and 31-3-37 do not apply to the highways on the boundary line of any municipality. Section 31-3-23 does not apply to any highway upon the county highway system or the trunk highway system.
SDCL 31-3-20