You report the SSN duplicates.

Elon looks over your shoulder. “Looks like you found some fraud, nice! This is what DOGE is all about. I had a good feeling about you. It’s so wild that they ever made SSN’s show short without imagining that it would cause so many duplicates in the future. What do ya think we should do Mr. Expert cost cutter?”

Cut off funding

Let Elon know you’ll look into it some more, seems fishy. There’s probably another form of tracking going on here.