In the case of a facility that is part of a larger structure, such as an office building or strip mall, the distance between the facility and the school, day care, or church shall be measured from the property line of the school, day care, or church to the facility's entrance or exit closest inn proximity to the school, day care, or church. If the school, day care, or church is part of a larger structure, such as an office building or strip mall, the distance shall be measured to the entrance or exit of the school, day care, or church closest in proximity to the facility.