Could it be that both you and the women infromt of you both have issues, you were in a hurry, maybe she was already annoyed about something etc. There are so many things that have an affect on a situation. Maybe she just couldn't keep it in and you were the last of it and she lost it, finding a reason to vent her own pain, blaming you for not only being rude, but for other things in her life. Sometimes people just lose it, I know I have, and I have felt so bad afterwards... maybe she got home and realised what she had done and felt remorse, maybe not. What she did was not right, but refrain from judging her if you don't know her situation. She could have heard some bad news that day that she hasn't processed yet.. anything.

I don't think she meant to hurt you as such, but you were the available "scapegoat". Maybe she went home, felt better and because she yelled at you she didn't need to yell at her family... maybe you did a good thing...