No person may park or leave standing any vehicle, whether attended or unattended, upon any highway unless a clear or unobstructed width of not less than 20 feet upon the main-traveled portion of such highway opposite such standing vehicle shall be left for free passage of other vehicles thereon, nor unless a clear view of such vehicle may be obtained from a distance of 200 feet in each direction upon such highway.
(SDCL § 32-30-2) Penalty, see § 70.99