After flicking through some questions from last week?

There were a lot on the Islamic veil related questions and how Muslim women are allowed to wear their face covering masks whereas if anyone else walked about in a balaclava or Scream mask they wouldn't be allowed to. So what would happen if a fully covered Muslim woman was in Tescos, no eye holes and no knowing who was under there, and I came in dressed in a Darth Vader suit, would I be allowed? After all I could be a Jedi or something and that's a religion?