Violation or Technical

[BamaRef]

Under the heading Violations and Penalties
Rule 9-2.12 states,
Art. 12...No teammate of the thrower shall be out of bound after a designated-spot throw-in begins.


Under the heading Fouls and Penalties
Rule 10-3.3
Art.3...Leave the court for an unauthorized reason or delay returning after legally being out of bounds.


The situations is a follows. A1 is at a designated spot for a throw-in along the baseline. After A1 is handed the ball, A2 on the opposite side of the free-throw lane and inbounds, comes around a screen set along the baseline, steps out of bounds, runs out of bounds behind A1 and the officials and after returning inbounds receives the pass from A2.

My question: Is this a violation or a technical foul? I have looked in the case book and found 9.2.9 dealing with 2 players being out of bounds to pick up a ball that has been put in play when no thrower is at the spot to throw the ball in. What do you think?