Make sure you document the date and time it happened, the personnel involved(yourself, and the mgmt whose disregard for your states approved legislation requiring facial protection, and wanton unprofessionalism chose to use their self perceived power and corporately endorsed)over you to embarrass you by not supporting you and your front end coworkers in these matters they also thereby chose to degrade you in front of your peers.
Reach out not only to your states health department, but the equal employment opportunities commission as well osha and the national institute of occupational safety and health and report your store and the staff involved that chooses to continue to flagrantly disregard state mandated protective measures and requirements for all those who choose to enter and shop there.
Be sure that you detail that YOU are afraid due to fears of retribution against YOU because of these matters. Make sure you detail that these actions perpetrated against you is making it an unsafe work environment not only due to management's flippant attitudes towards state mandated health regulations and guidelines to PROTECT you and your coworkers AS WELL as shoppers, but also for managements targeting you because YOU ARE notifying and enforcing those practices they have chosen to disregard.
Don't forget to call your doctor and get checked out and fill out the time off allowance corporate is providing, just as a precaution.
You are most definitely not being supported by your store management, you have to look out for yourself.