she had a dawww moment and he gets a reprieve. Which is good, because depending on just how frayed he was, he would have either seen through her or had a panic attack because HE knows he didn't steal them so for additional panties to appear someone had to frame him, and frankly not knowing who you pissed off enough to make them want to ruin your life in this sort of way is downright terrifying.
I never thought I would think that it would be better if she were into whips, but goddamn.