No person shall stand or park a vehicle in a roadway other than parallel with the edge of the roadway headed in the direction of lawful traffic movement and with the right-hand wheels of the vehicle within eighteen (18) inches of the curb or edge of the roadway except as hereinafter provided in the case of angle parking and vehicles parked on the left-hand side of one-way streets.
(Code of Iowa, Sec. 321.361)