When to call the Technical

[johnsonboys03]

A1 fouls out of the game. The proper order was done and a substitute checks into the game. Play resumes and I notice the player that just fouled out leaves the bench and heads to the locker room. But the resumption of play was with the opposing team with the ball and trying to score. I decided to delay until the opposing team had their opportunity to score. After successful shot, I blew the whistle and called the T. My question is would you have waited or called it immediately?