Personally I would have taken her name down and complained to the manager about her attitude in person or in writing or even to their head office.
Companies usually appreciate feedback like that from their customers so they can address customer service issues or problem employees.
Maybe because I worked in retail myself for several years I expect good customer service

but then I also treat store employees well (unless they are rude) because I know how hard that job can be.
My DH and I were in a large hardware store and were preparing to drop about $600.00 on our purchases for our new home. We were completely ignored by 3 different employees ( even when my husband said excuse me to one of them and they looked at him and just kept on walking

) so my husband just said to heck with this rolled our half filled cart up to the customer service desk and wallked past the cashier on the way out the door saying " I can't seem to get any service in here so I am going elsewhere".
We then went to their competition and got amazing service from a clerk who walked around the whole store with us helping us find everything in each department. He was polite, helpful and knew his stuff.
When we got home that night DH sent phone the customer service number for the first store and told them the details of what happened. They apologized profusely and sent us a $25.00 gift card.
He then sent an e-mail to the second store thanking them for the excellent customer service we got and named the store location and the employee and asked that our letter be forwarded to the store manager. We got a reply e-mail the next day thanking us for our letter.

This store is now our new favorite store for home building and reno supplies.....
DH and I figure that if we are willing to complain about bad service then we should also be willing to compliment good service.
BTW we did use our $25.00 gift card at another location of the first store but the service at that one wasn't that great either...
