Tim Hortons review: service of an employee

I visited this tim hortons around 3:20 am on 16 july . me and my sister asked for beyond meat and they said that you have to wait for like 30 minutes and then me and my sister were sitting and doing some important work, then that girl called and asked that come and place your order, then my sister told her to wait because we were doing some calculations and we didnt want to place order at that time.

Then she angrily replied" [censored] OFF"

this is how you guys are suppose to serve your customers