Exactly, it appears this poster, like so many people who do not wish to accept ANY authority over their life, has pulled out this big very common excuse of "this being forced to attend treatment program meetings with a religious flavor violates my right to be an atheist."
But all that is being asked is that this person submit to a Higher Authority, as in the court which is saying, "Attend that meeting program or take your happy un-submitted self to jail!" You definitely have a choice.
You won't get far in the court system saying you have the right to insist you don't have to submit to a higher power of any kind. The court system itself, the law, is a higher power. The twelve step programs are very conscientious to identify themselves as non-religious programs, unless otherwise designated. You could if really motivated, find meetings that do not require any faith commitments. Or you and your convictions can take the alternative.