(a) When any police officer finds a vehicle standing upon a highway in violation of any of the provisions of section 169.32, such officer is hereby authorized to move such vehicle, or require the driver or other person in charge of the vehicle to move the same, to a position off the paved or improved or main-traveled part of such highway.

(b) When any police officer finds a vehicle unattended upon any street or highway or upon any bridge or causeway or in any tunnel where such vehicle constitutes an obstruction to traffic, such officer is hereby authorized to provide for the removal of such vehicle and remove the same to the nearest convenient garage or other place of safety.