Long story VENT.. So hormones or she was a meanie?

Went to barnes and noble the other day had a few books for DDs picked out when it was my turn to check out she rung me up and I laid my bills on the counter to dig out some change which I set next to it. Meanwhile I dropped a bunch more change and had to pick it up, I stood back up my money was still there on the counter in front of the girl just standing there and she looks at me "are u going to hand me that?!?" Um I dropped stuff from my purse I have a 5 yr old I'm holding her hand and other bags as well I was like "oookkkkk.... That's kinda funny" as I picked it up to hand her and continued to pick up my stuff. When she commented very rudely to me "EXCUSE ME?!?" I was about to explain my hands are full is it that hard for u to pick up the money right in front if u (it's not like I threw it at her or placed it out of her reach). So I decided nevermind we don't need these books that badly I can buy them somewhere else. I asked for my money back and left the store practically in tears. I know the tears seem a lil over the top I'm sure the hormones contributed to that but I was really hurt to be spoken to that way I didn't feel I deserved it.