Is it the policy of the entire company or just this location to call and threaten employees with right ups and termination if they don’t come in while ill & running a fever & vomiting??

That sounds typical of retail and restaurants. I'd just take the writeup and stay home.

Aww, that's not cool. You handle business when they return, not while they are sick at home is my feeling. But please, don't make my order if you are sick, I really appreciate it.

There is surely abscence of sanity. And lack of education. More than that a missing piece called relationship. Who so ever gets in situations like this. Please read the book Crucial conversation and crucial accountability. I will give you money back if the answer is not found in one of these books.

Idk I never worked at Chipotle!