Re: He needs to escalate it
This is now negative publicity, 1 lost PS4 sale is more than the loss of this stolen game price.
If this is all true and Sony now bars him from accessing everything else it'll be a lot more than just the price of the game and some customers - he could go to Small Claims and claim all his costs back.
Now *that* would be costly, also because one successful claim like that would open the floodgates, and on top of that the bad publicity. That could comfortably put a six figure dent in Sony if they're not careful, and it seems that would be richly deserved.