SocOfAutism wrote:
write in a little notebook that you keep in your CAR, not at your desk, that on this date, what's her face said that and this person and that person was present. Just in case she ever does anything to do you can have a mountain of evidence to take to someone else.
I would say this is good advice. If at any point in the future you want to bring this up, you'll need to have it documented. Note time of day, with the date, and specifics of the situation. At this point, if you try to bring up some kind of harassment or discrimination case, it is just your word against theirs. One incidence of a passing comment isn't going to hold much weight. If it turns into a pattern, documenting it will be useful.
This may be the only incidence. Or it may be the start of a string of discriminatory activity and if you need it to defend yourself or back up someone else, you'll be able to present as legally admissible proof in a discrimination case.