There is no one you can talk to, no way to expedite any remediation, and you can't travel to the US by boat or plane to talk to the CBP.
What I ended up doing, and I don't necessarily recommend this, is flew to Canada and entered over the land border.
After spending something like an hour at the border, and holding up my bus, they let me in.
Supposedly I should be able to apply for an ESTA in the future, but it's not something I have tried since.
I didn't get the job.