Can a school bus driver that was fired fom his job be told he can go on school property

Question

Can a school bus driver that was fired fom his job be told he can go on school property

Answer

Does the driver have a legitimate reason for being on school property? e.g. He/she is the parent of child attending the school and has to pick-up/drop-off the child; invited on the property by a person with authority to do so.