@Knittinggrace I believe you're asking the wrong questions. Moses veil was a literal veil. Paul speaks of the condition of the heart and not a physical veil/mask.
Now, if the question is: must a Christian disobey an order to wear a mask, I'd say: no. Because its a piece of cloth (Moses), not related to to anyone's heart. Likewise, our faces arent glowing with the glory of God.

Paul uses Moses veil to explain a spiritual truth, not to reopen OT-ways...