National Highways Authority Of India [NHAI] — Complaining about toll plaza

Address:

Mathani toll plaza , NH6 MOUDA , NAGPUR

I was going for exam with my car and toll plaza made us to wait for 20 minutes. It wasn't my fault. They were stopping everyone for no reason. I was in the queue then they asked me join new queue, even in new queue they asked us to wait for 10 minutes. Everyone was honking at them but none of them were responsive. The guy sitting in booth just left the booth to ignore us.
There is rule that you don't need to pay toll if you are waiting there for more than 30 second but seems like they don't follow. They don't have respect towards govt. Rules