Tech or no call?

[upanddown]

HS Varsity boys end of season game before playoffs and state, two undefeated teams; crew calling a great game staying out of the game for the most part. Its overtime freethrower on the line makes and one shot to bring score up 3; the crowd is in the game; however this 6'5" shooter on the FT line holds follow thru arm high after shot drops, turns to the crowd nodding in showman fashion turns back towards bench walks 2-3 steps before dropping his arm for the time out called by opposing team while teammates patting his back. Would you T him for unsportsmanlike conduct; is this a justifiable T? Is it worth the crowds turning on the refs or would the T be such a game changer that the refs got too involved? The time on clock 30 sec. End result no T and same team won. Oh yea all playoffs played at neutral sites.