I would have gone straight to Father after mass, our priest is very respectful, although I don't think he would have a EM who behaves like that. We know have an altar boy with paten even in the choir
loft because so many people receive on tongue. And we are an OF parish. but he has but four kneelers up in front for those who want to kneel now! and all masses are Ad Orientum.
Cardinal Arenzie, when prefect of the CDW, specifically stated that EMHCs who do that are in the wrong. You might have to dig to find the clip, but I don't think the EMHC or Father can claim the Cardinal