I really don't think you could give a T in this situation. 9-1-2 indicates "Teams shall properly occupy marked lane spaces according to number and space requirements as in 8-1-4.". The penalty for failure to comply is in 9-1-P2 -
2. If the violation is by the free-thrower's opponent only:
a. If the try is successful, the goal counts and the violation is disre*garded.
b. If the try is not successful, the ball becomes dead when the free throw ends, and a substitute throw shall be attempted by the same free thrower under conditions the same as for the free throw for which it is substituted.


Maybe you could give one for 10-1-5b (delaying game), but even that would be a stretch. They just keep getting a violation penalty until opponent makes both throws. Then they have to take the ball out of bounds. If they are not ready then, you really do have problems.

10-1-5b is the exact rule that allows a T to be called. Corrensponding case plays verify this.

Yeah, as I re-read it, I think you are correct.

b. Delay the game by preventing the ball from being made promptly live or from being put in play. See 7-5-1 and 8-1-2 for the resumption-of-play procedure to use after a time-out or the intermission between quarters. The procedure is used prior to charging a technical foul in these specific situations.