The parking of vehicles at any time on the public ways of the county in such a manner that any part of the vehicle so parked is within five (5) feet of either curb edge of any existing opening or hereafter established entrance to any public or private driveways or shall overlap or obstruct any existing opening or hereafter established entrance to any public or private driveways is prohibited; except, that an owner may obstruct his own private residence driveway. (1978 L.M.C., ch. 7, § 2.)