This is somewhat different from the impression we've been given of "don't call the police." I'm not saying that the school authorities weren't trying to remain in a media-free zone. I'm sure they were worried about their hides. But since the incident was over, using the non-emergency number wouldn't alter the police response once they heard the report.
Why wouldn't what happened to his daughter be considered an emergency, anyway, esp. since she was fearful and had suffered mental trauma? Is it common practice for Ohio news channels to tape 911 calls, like a police scanner? I understand the school's fear that the enraged father might attack the boys if he saw them in the school, but they could have kept the boys in a locker room or whatever until he'd taken his daughter home. They mishandled this big time and a big fat lawsuit is headed their way.