Dunno, I've used direct deposit for over 30 years and never had a problem. I had to correct payments on two occassions, when I got paid for deployments after I had returned (I initiated action in both cases) and both times they just took it out of the next paycheck.
Actually, justice may be served in the end. I think the person can file a complaint about a rules violation and they have to process it. Laws were broken here. I hope it works out.