Well, over the weekend, people outside the federal government realized that seemingly anyone can send an email that will presumably reach Musk at this Office of Personnel Management address. On Facebook, Alt National Park Service, a "resistance" page dedicated to protecting the parks, posted this:

Millions of Federal workers are grappling with more confusion over a directive from Elon Musk Federal judge rules Trump administration has to pay millions in foreign aid Supreme Court overturns Richard Glossip conviction,