[Back In The Saddle]

That would be my take too, simultaneous free throw violations. Cancel the first shot per the prescribed penalty, and move on to the second shot. Any further delay be either team is a team technical, or a double technical if both teams delay. If either team still continues to delay, then I think one official goes into the huddle (or into each huddle) and threatens to drop "f bomb" on them. The "f bomb" being "forfeit", which is the prescribed penalty for continuing to delay after the T. I can't imagine it ever going that far, but we ought to at least know what to do if it does.