For some cameras in stores hiding IR LEDs on your person aimed out (eg sewn into a collar or hat facing forward) will disrupt the facial scanning but many have gotten wise to this and added ir filters. Even if they are susceptible it’ll make you a big white blob which easily makes you stand out so they can manually review footage and look for any moment the led failed, you didn’t wear it, you getting into a car with a license plate that’s read by an alpr, they just come grab you if seeing it live, etc
Nothing beats the combo of hat/mask/sunglasses though. Though some sunglasses are transparent to certain cameras, and others like vaydr claim to have an extra layer beyond ir blocking (but don’t explain how it works, really, bc “proprietary”)