If there is no wrestling that needs to take place, he can leave the mat. The call in question would have decided the match. It should have been 2 TD for Ike, but instead it was 2TD for Tahoma and 2 reversal for Ike. In a one point match, the call decided that match.
If there needed to be more wrestling that needed to occur, the Ike kid needed to be within 10 feet of the match. Either way, he was fine because he never left the mat area. Navejas got away with one. Whether he knew or didn't know, it was not his place. The Ike kid should have had his day in court with the games committee.