Well, she *could*, it's illegal, and depends on state laws. Fraudulently obtaining controlled substances is something being very heavily tracked and investigated anymore. Technically the more she 'shops' the stronger a case can be built to charge her, if that's not in process already. Each charge can add up, and depending on the laws near her.. an arrest made, court.. jail..
I was thinking she was just flagged and was going to stop.. I would encourage her to stop asap, and get sober (and not switch to buying them on the street for goodness sake!).