Excessive TO-Free Throws Too Early

[LeeBallanfant]

This actually happened in a game, but no one picked up on it.

Team A down twp points, grabs rebound with 8 seconds left and Team A player calls timeout. This timeout was in excess of number allotted and officials called an Admin TF.
However, officials instead of allowing Team A to have the full TO, immediately administered the two shots which were good and then went to spot of infraction and gave Team A the ball back now down 4 points.

Suppose after the shots had been made, Team A Coach points out to the officials that he has not been given the opportunity to use his 75 seconds.

Should officials cancel the points and have them shot over again after the TO has finished?