Intentionally Leaving The Court. Violation?

[Knights_Coach]

We had a game 1/26/15, it went like this:

During the 4th quarter, Team A's(them) player fouled out and this also put Team B(us) at the free throw line. Well, Player A gets so mad he leaves the bench area and playing court headed to toward their locker room. The referee spotted the occurrence, didn't allow us to shoot the free throws & told Team A's coach, & the other 2 refs he had to come back. Mind you Team A(us) is waiting to shoot free throws. The referees waited for him to return to the bench all while we waited over 1 minute. Team A never received a technical. I argued my point, tried to get a referee to come to me but was ignored. Never got an explanation.

NFHS 2014-15 Rule 10: Fouls & Penalties Section 5: Head Coach Rules, Article 5 states: The Head Coach shall not permit team members to leave the bench area and/or playing court for an unauthorized reason.
PENALTY: (Section 5) Two free throws plus ball for division-line throw-in. The foul is directly charged to the head coach.