I had a nice chat with my lawyer friend.
Basically the only thing they have is Heresay.
A declaration that I said "I'd help if it was needed." but that was to my friend that doesn't work there anymore. He is also one of the ones they are trying to get back to work for them. The one I made a phone call to.
Lawyer says, wait til they figure out I basically instructed them to STFU, you have no grounds. He wrote a draft letter last night and we agreed the tack to take.
If they don't understand it clearly, there are about 200 cases of law that can back my side up. Only about 4 that could be considered for them... but were under completely different terms.
Basically, they have a few options, but all of them will fail[1] in front of a judge.
I only have to wait for the response to the STFU letter (worded much better than that though (I HOPE!!!)) and then decide if I will help them and if I do what level of grief I will put them under... and since the advantage is mine, they will sign something like a "letter of held harmless" or something like that to prvent any furtherance of this. As suggested by my fire-nd.
Hope this goes away quickly.
[1] 99.9% chance... there is always the odd exception.