The OP is not being charged with anything. No outside sources have been told anything about what's happened. There is nothing to suggest that any adverse references have been provided to anyone or even contemplated.
But you're of the opinion that yelling and screaming and making lots of noise and essentially rubbing everyone's nose in it is going to cause fewer problems in the long run than quietly accepting a legal termination. I see. You have an odd idea of what things are likely to haunt one.
I do think you have one point worth addressing, and that is negotiating a neutral reference. But you're quite wrong if you think the best way to handle it is by injunction. Do you really want to give the employer the opportunity to say something on the order of, "By court order I am prevented from giving you anything but basic information about this employee"? And yes, they quite legally could do exactly that.

