Richie,
I second Rabbit's suggestions. In my own experience I left the JWs (and was considered an "apostate") and my wife who'd been a pioneer for many years did not know how to handle the situation. I found bending over backwards and being as kind and loving as I could be was the best course I could take. All her friends told her I'd be a real scoundrel now that I'd "turned my back on Jehovah." Instead, I did my best to "kill her with kindness." Kind of like Jesus' words which says we should bless those who persecute us or the passage in Romans which says our returning good for evil has a softening effect (like "burning coals") on those who oppose us. In less than a year and a half my wife became an inactive JW.
I'd say get direct deposit and secure your belongings. But, if you can, stay with your folks and show them how much you still love them. Buy your Mom presents. What does she like? Movies? Restaurants? Clothes? I think if your Dad sees you bending over backwards to show love and respect to her despite all the stuff she's doing now because she's all confused and angry he'll step in and tell her to cool it. Who knows? Your being patient now with her and letting her blow off her steam and then showing her how wrong all her JW friends are about you may eventually plant that seed of doubt in her mind about the Watchtower Society.
Wishing you the best in your new life,
Cabasilas