In Pitino's press conference today he says that when he told Driscollthe call was absurd, Driscoll replied that he called the T because Kuric said something to the Notre Dame player.  Driscoll then walked away and talked to another official.

Fifteen seconds he returned and said he was wrong and that Kuric hadn't said anything but it had to be a T because he looked at the other player.  That's the same as a cop writing you up a ticket and half way through he realizes you weren't guilty of a violation but once he starts writing that's it, he can't tear it up.  Driscoll knew he was wrong but couldn't rescind the T.