An idiot's punishment
In short, she drove like an idiot. We don't know if she is an idiot but at least one judge wonders, prompting a sentence of wearing a sign.
Turns out it took video evidence to show how bad her driving was, going over a sidewalk to get past a school bus. One bad to make another bad, doubly troubling.
Reminds me of former 52-4 District Judge Michael Martone, who once made a young man listen to classical or opera music loudly after he was ticketed for playing his car music too loudly and disturbing the peace.