I'm incredulous an auth focused company would do this without someone freaking out? Even my much smaller SaaS companies would react quickly to stop and rotate these if this happened.
The reason I think that is because if they really had keys for production machines it seems very unlikely they wouldn't have used them to produce some more damaging collateral than they've presented.
We get alerts when folks are sharing tutorial code with fake keys like DEADBEEF in them. It's nice to know DPL works, if you use it.