Please follow shelter in place. I know you want normalcy, but social distancing is not possible serving coffee. By returning to work you are potentially causing harm every single time you interact with customer at all.
The virus is airborne, not all your stores have masks, and you share headsets. The virus lives quite a long time on solid surfaces, for example: credit cards. Cash. Etc.
Gloves don't add very much extra protection. In fact I would argue none at all, considering food service laws require gloves to be changed as frequently as you would wash your hands.
Be reasonable. You do not need to create more risk. Stay home.