New one for me

[OHBBREF]

Originally Posted by Nevadaref

NFHS OFFICIALS MANUAL page 20-21
2.2.2B(2): Indicate color and direction, designate the throw-in spot, sound the whistle to alert players that play is about to begin, place the ball at the thrower's disposal.

If you did all of that, and the teams go the wrong direction, then there is no reason to stop play until a foul or violation is committed, a held ball occurs, or a goal is scored.

If the proper mechanics were followed, as Texref has indicated in one of his posts, then simply stop play, score the goal for Team B, and allow Team A an end line throw-in.

This is my point you can not just stop the game because it looks loke people are confused.
You have to have a dead ball to stop the play, then you have something to fall back on but you can not just stop the game you have no reason by rule to stop stop the game just because a team is going the wrong way.