I formed no opinion at first, but was willing to accept that perhaps it happened. Since then, it has become more and more unreasonable a position - still possible, but not very reasonable. One part of which is that he can't possibly be taking all of the pills himself - he'd be quite dead. Another is the lengths to which the Pharmacist would have to go to cover up a SINGLE PATIENT acquiring a refill or two a day. further is this idea of doing the exchange in some gas station lot when the maid could just bring the drugs to work and exchange things there. Not to mention the background of identity theft and other oddities that the maid and her husband had. I will say this - at the least Limbaugh is shown to have had questionable judgment in hiring her given her and her husbands background.
Anyone can be personally weak and mess up, but all of the circumstances described sure seem like the hard way of doing it.
I think, if I am not mistaken, that the original story had her still procuring pills for him even after she left his employ.