Where else would Petras go? He isn't going Pro and football don't have a G league or overseas leagues for him to go to. So it's either play football or fast food service.
FWIW I caught a couple of his post-game clips and he seemed above and beyond the fans for being well rounded (doesn't take much, but still) and on a human level I hope he finds a good life post-Hokdom.
The other dude transferring is funny if true.