Outside of a business or residential district, no person shall stop, park, or leave standing any vehicle, whether attended or unattended, upon the roadway when it is practicable to stop, park, or so leave such vehicle off the roadway; but in every event, an unobstructed width of the highway opposite a standing vehicle shall be left for the free passage of other vehicles, and a clear view of the stopped vehicle shall be available from a distance of 200 feet in each direction upon the highway.