Gaddy in fact holds a written POA.
As for mitigating the horrors of the initial release, the nephew is reported to have sent an e-mail after the Monday hearing (which included the order to provide "all proper nutrtion"), wherein he asserts that Mae is not intubated, adn therefore is not receiving an amount of nutrition that will sustain her life. "Proper nutition" is different for a terminal patient, than it is for a healthy body.
It is puzzling. Why would the nephew or Mae's sister be upset in the least? Unless they think that Mae's life is being shortened. But, as we know, shortening of innocent life is perfectly legal, as long as the paperwork is in order.
I don't know the answer to that, but some on FR have looked into Ken Mullinax and have questions about his politics. Frequently in these kinds of issues, there is no good guy/bad guy. It may turn out that this also is such a case.