In Illinois, is driving down the street where the petitioner lives considered violating an order of protection?

My family member has a plenary order of protection filed against him by his wife (soon to be ex) for alleged domestic violence (pushed her away when she tried to shove him down the stairs after surgery). It is a War of the Roses kind of divorce. He drove down the street where his house is to see if his 19 year old was having a beer bash (she has rights to the home and children live with her during the 1 year supervision), did not stop the car but simply passed by and she is having him arrested for breaking the order. I have read the entire order and no where does it say he cannot be on the street. We are confused and don't know why this is happening... he does not drive down the street daily, has not contacted her in any form except through 3rd party about children so the question is, what can happen? He has to turn himself in when he gets back to town and will have a bond hearing....but he didn't do anything wrong! how much will the bond be, and can he go to jail for this stupid reason? Help!