"No state has the right to execute someone for commiting the crime of being inconvenient."
Is there a reasonable time for the continued feeding?
Your question presupposes that indeed she is personally guilty of that crime of inconvenience and has only a limited appeal process before the execution be carried out.
Is there a reasonable time before she be smothered with a pillow?
Is there a reasonable time before she be hooked up to the main electrical lines?