The HHS website says you can tell your healthcare provider to bill the government for it. The reality is, you just want to demand that other people act like you do and I do not care whether other folks act like I do.
https://www.hhs.gov/coronavirus/covid-19-care-uninsured-individuals/index.html
Well, actually, according to KFF, most insurance plans aren't going to cover COVID expenses anymore.
So Mr. "freedom" is going to be on the hook for $40K if he goes to the ER for treatment...and if he dies, his kids and spouse are on the hook.
Government is not on the hook for that.