McDonald's staff

So I've been to McDonald's on Tuesday this week,hoping to have a pleasant meal with my family & head home. While placing my order I did ask the cashier about the specials they were having and she completely ignored me ,she rolled her eyes at me and started talking to people at the back . I then asked her again & she responded will full attitude which I didn't appreciate but I completely ignored when I got to my table to sit and eat I was told that I have to leave the store by the same cashier as they was closing the store at this time it was around 7pm. They did ask me if u was going to eat in or take away and I mentioned I'll eat in.if they were closing at the time I would have appreciated it if they told me that I cannot eat in.