This section applies only: In Montgomery County; and To a school bus stop at a location for which at least 400 citations were issued in the preceding fiscal year to drivers traveling in the opposite direction of the bus stop. Beginning on December 31, 2028, a school bus stop may not be located on any highway with five or more undivided traffic lanes unless: A school crossing guard is posted at the school bus stop to assist students in crossing the highway; or A traffic control device that maintains a red signal while a student is boarding or exiting a school bus is placed at the school bus stop.