Luckily we have libertarians, 1990s Republicans, and Hannity and Infowars fans that will fight vehemently to stop this sort of face scanning. It is all of theirs' nightmare scenarios way past all their red lines up there with Walmarts turned into relocation camps.
But until they sort it out is it possible to make temporary tattoos (or just stickers) with patterns that make facial scanning unfeasible?