Take them to the cleaners? It's quite possible that there could be a felony criminal conviction and prison sentences. And if they do it again after that, they could face criminal and civil racketeering charges, to include triple damages for every penny's expenses incurred by the victims of their crimes, as well as getting to pay for the plaintiff's attorneys at 1.5 times their usual rate, typically $295 per hour for such work- and the award for back pay can be doubled, as well as a fee for interest.
PepBoys is about to learn about the USERRA. And I suspect they'll not enjoy their education.
-archy-/-