did I do this right?

[CaliOne]

Pre-game: I was the R. Partner and I discussed above rim play and reminded the point that trail will cover that. OK.
Varsity boys game, 1st quarter. A1 breaks away from 1/2 court, with 3 defensive players close behind, all running full speed. A1 goes up for a dunk, get above rim when the ball slips out of him hands and bounces above backboard. He grabs the rim and hangs there for 2 seconds swinging back and forth a couple times. I was trail. Partner at lead blows whistle with his fist up. I thought he had a foul. He then immediately signals a T. He's on his way to report and I head him off and ask him what he had. He said, "automatic T for hanging on the rim" I, knowing better, said he was protecting himself and the other players around him by holding onto the rim. I wasn't going to let him give the T, and after a little discussion, I convinced him to give it up. So I went to the table and told coaches. The A coach was releived, because he thought A1 was protecting himself. B coach didn't hear right away that I wasn't going to let my partner call a T, so when I told him "NO T" and we are going with the possession arrow for inadvertant whistle, he threw his clipboard down, yelling and threw himself back in his chair, with his hands up, stomping his feet. I looked at him, blew my whistle and gave him a T. 3 guys from the B team crowd stood up and ran down off the bleachers like they were going to kick my *** or something. I just stood there, and game management stood in, so noone actually came onto the court. They obviously didn't like that T. I administered the freethrows while my partner explained it to the coach. After the freethrows I went to the coach and he didn't want to hear my explanation, so we threw in and the game went on from there with no further problems. Long story, any input for me?