How are you rb? Are you breathing any better than when you posted?
Rude, condescending people...jerks on the phone who threaten lawsuits...nothing you can do about them. You handled them all beautifully and that's all you can do! Their problems, not yours!
The good news is that you did quit! I remember you posting after you had made your decision and it appears you made a smart choice. Now pat yourself on the back for making a choice that was healthy for you. Tomorrow you are one day closer to being free from this job.
Hopefully your vent gave you some relief. And I will say a prayer that you get a good night's sleep.
Hang in there. Take back your power by remembering you have no power over others. Only you. And you're pretty darn amazing. You'll get through this.