From what I can gather its worse than that (for her). Its not like she wore a wire for the cops to get get a plea. She taped the conversation all on her own. She went straight to the Enquirer and cashed in.
The cops have no use for such tainted testimony now. I'm guessing she never told the cops about Rush at all because the story is either mostly or entirely false. Her lawyer is a high powered, expensive Democratic operative. Why? How did she get such a lawyer for what amounts to a local drug case? Something really stinks with the maid's story.
So then it's possible the pills were stolen from his prescribed stock and sold on the black market without his knowledge?