[Adam]

The NFHS specifies that it's okay to ignore defensive violations when they're specifically used to negate a legal advantage.
Examples given are when the defense tries to step across the throwin line to stop the clock when they're out of timeouts at the end of the game(or grabs the ball after a made shot for the same purpose) and when the defense steps OOB while an offensive player has an uncontested layup.
If my assigner questioned me later, I think I'd be able to justify ignoring this no matter how blatant.