A school bus driver, for the purpose of preventing being overtaken when receiving or discharging any school children, may stop on a street or highway blocking the two (2) outermost right lanes, regardless of the number of lanes on the street or highway. For a two-lane street or highway, this provision allows for blocking both lanes. Such school bus driver may only block both of these lanes during the time that the school bus is receiving or discharging any school children.