“Do you want some grits?”

This comment has absolutely NOTHING to do with anyone's race.  The woman who reported this is completely mistaken in assuming that it is a comment which has any reflection whatsoever on one's race.  Grits are standard fare in the southern parts of the USA.  Grits are NOT eaten, as she seems to assume, only by African-Americans.  Grits are eaten by EVERYBODY.  To judge that a comment about grits is a racist comment is nothing less than profoundly a ignorant judgment.  To judge that speaking a phrase or a sentence with a 'southern accent' is a racist act is also nothing less than a profoundly ignorant judgment.