That totally stinks...I'm really sorry to hear about what a "pain" the woman was bein..lol
My brother has always kept confedarate flag stickers on his vehicles, and never had a problem with it, but then we moved to the city and people started really going off about it.
He also has a licence plate that has a rebel flag, and says "johnny" (either for johnny reb, or because his name is John.lol) and he has gotten it spit of more then a few times since moving here,
Then last year, on Robert E. Lee's b-day, we painted "Happy Birthday Gen. Lee!" on the back window of his truck, and we got some looks that could kill, and we got into so many...you might say "arguments" about it too..lol Maybe it was because his birthday fell on MLK day.lol
Anyway, I have no problem with having a sticker or plate or anything. I mean, to me it's about heritage, NOT hate!
I don't see why people have to get all worked up about us having the confedarate flag displayed. It's a free country, and like you, I'm not going to take the stickers or anything off because someone was offended. They can get over it.