[Butch Cassidy Slept Here]

First I think it's reasonable to assume the head scarf was for religious reasons as opposed to some medical reason, such as chemotherapy. Accordingly the primary basis of this complaint should be religious discrimination, rather than racial discrimination. So if anyone wearing Jewish Orthodox headwear was observed being served that would be relevant in this instance. Still, depending on how this woman might be perceived, and more particularly, how she perceives herself, an additional complaint on racial discrimination is still an option. "Asian and Pacific Islander" is a "protected class" under Federal Civil Rights statutes. I don't know what class would apply if she is of North African origin.