Anon needs to be careful here. Companies/corporations are allowed to enforce their own rules. Need to find out if ID is Right-to-work or not. Is spouse part of a union? Start here: https://statelaws.findlaw.com/idaho-law/idaho-right-to-work-laws.html
That's why anon needs to do research. Masks aren't mentioned in the Constitution, as far as anon remembers.
What it comes down to is this: if employers can insist that food service workers must wear gloves and hairnets, then employers can insist that other employees must wear face masks. It's not a violation of constitutional rights. If anon still needs clarification, get a free consultation from an EMPLOYMENT ATTORNEY. No offense, anons.
They also didn't have the internet. Maybe (You) should unplug and go shoot a buffalo.
Soros loves wooder ice.