Goodwill Industries complaint: Horrible/Racist service

I found a dollhouse for my toddlers but was too big to get in the cart for checkout. So I went to the checkout to find someone to help me since I could not find anyone else around the store. As I approach the checkout person and politely ask her, if I can get some assistance, please. Her immediate reaction was, What kind of assistance do you need? I explained to her that I need help with the dollhouse so I can pay for it. She then rudely told me, no one is going to assist you, you take the tag of the item and bring it here and that is how it works.

There could be a million ways to answer my question. Why did she have to be disrespectful? Because I was Asian and did not over-dress to go to Goodwill. I was furious and left because I did not want my children to see their mom get upset in public. That is not the message I want my children to learn or know. Also, I do not want my children to think that it was ok to be disrespected.
If she disliked her job, she should not be there. She is allowed to treat customers like trash due to the way I dress or my ethnicity. I will pass this message along to my community and recommend them to not go there again. What a horrifying experience!