I am glad she is in the hospital. Once she is released if she chooses not to follow up with outpatient care then you have your answer about how serious she is with turning her life around.
And I have to disagree about the ticket. It is a big deal and creates another "red flag" to your case with the children.
Get your own health in order. How will you do that? When do you expect to have some answers about your surgery? What will you be doing to get your children back? How will you continue to pay child support w/o a job? Focus on that stuff!