Does being nice to people actually make them mad?

I was on drive thru at McDonald’s  and a customer ordered 2 sandwiches, 2 hash browns, and 2 drinks separately. I asked her if she wanted to make those a meal. She said not really. I then explained she’s getting the exact same thing but it cost less. She then went off on me saying “I don’t care do whatever! That’s all I want.” I said sorry I was just being nice. Oh and the supervisor at Arby’s that got mad because I looked up to her!