wow..i thought the dog cone on servers in restaurants was a joke...but uh..no
https://www.maine.gov/decd/checklists/restaurants
Require employees to wear cloth face coverings and practice good hand hygiene. It is acceptable for kitchen staff to wear face shields in lieu of masks when the kitchen or weather is warm. Front-of-house staff may wear a face shield in lieu of a face covering only if the shield is designed to be worn inverted, attaching below the face (e.g. as a collar) and open at the top of the shield, with the shield extending above the eyes and laterally to the ears. Face shields that are open at the bottom, directing breath downward, are not acceptable replacements for face coverings for front-of-house staff. (Updated 8/14/20)