hrmmn.
this is some creative, out-of-the-box thinking.
i think that satanism is pretty stupid and is really just a way for theists to pretend they're atheists (if you were really an atheist, you wouldn't need any of this....it's like training wheels for atheism), but this is potentially something that could be expanded upon more generally to undo an entire category of religious legislation.
in the end, you have to fight for them to stop legislating morality. in the meantime, you can make fun of their morals as you find ways around their tyranny.