As crazy as it may sound, although it shouldn't, HR Manager's are viewed as the role models for corporate policy, including dress. IMO you have to be extremely conscious of the message you're conveying during the interview (AND just as importantly, after you get the job.
) I imagine the interview panel, will more than likely be comprised of individuals of a different ethnicity. Similar to what I posted above, you want to avoid their envisioning your influencing others (through your hairstyles) into wearing twists, braids, etc. And you can be assured they will envision the worst
and not a neat style like yours.
I like the wig suggestion, and a sew-in is another option.