1 it is in the news papers, it's common knowledge
2 the staff at the wherever can say there is a delay in care due to covid, there aren't any services we can offer YOU at this time
3 yeah he guessed that what he was reading in the papers was true after getting to the hospital and they refused care
Did he ask why?
He wasn't refused care. His son's care was triaged. He wrote:
"The ER was overwhelmed with unvaccinated COVID patients".
I can't tell from looking at somebody their vaccination status or their COVID status. It would be a rare talent indeed.
But I don't think he has that ability. Nor do I think somebody told him the presenting problems and medical history of the people in the ER. I think he guessed.