National Highways Authority Of India [NHAI] — irrelevant behavior of toll supervisor

Address:

Sadrewadi toll plaza, Pune, Maharashtra

My father is maharashtra govt police employee. Was travelling from indapur to pune. They ask to pay the toll as its not allowed for police in private vehicle. If this is the rule they have to show them written format of same. We met the supervisor for knowing the rules. Supervisor behaves in very bad tone& language. He doesn't show any kind of rules in written format instead of that ignores us by telling to complain about same.