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:

The Trump administration is restoring jobs for dozens of fired National Park Service employees and hiring nearly 3,000 additional seasonal workers, following an uproar over an aggressive plan to downsize the agency.

Workers across agencies fear their jobs are on the line as they scramble to respond to a vague Saturday message from Elon Musk’s team.

The permanent staff cuts could leave parks understaffed and facing tough decisions about operating hours, public safety, and resource protection.