Delay situation

[ChuckElias]

This was on an old NFHS test that I was going over for review.

Following a time-out, A1 is in the semi-circle and ready to attempt his FT. But when the official is ready to administer the FT, A2 and A3 are still huddling in the lane. The official issues a team warning for delay. Is the official correct? Answer: NO.

No? Is it "no" b/c it's immediately following a TO? Is there some aspect of the Resuming Play Procedure that comes into play?

So then what should the official do? Place the ball in the semi-circle and then immediately call a lane violation on A2? Issue a technical foul? Those seem like the only two options to me, aside from the warning. The first seems kind of silly and the latter seems excessive.

I know what we'd all do in real life (shoo them out of the lane and into their lane spaces), but what's the rulebook answer for this question?