You know, I live in the buckle of the Bible belt and can honestly say that no matter where I've had my Boomers, they have never been referred to as an "N" box...or had any other words racially disparaging about my music or boomers. All types of all ages just had a funny anecdote or story about boomboxes.
Honestly her fat ass would have received "Southern Justice" down here. Southern hospitality rules the day 'round here. Fat chicks with nasty attitudes do not.