Chipotle Mexican Grill review: bonus not allowable, rude staff

I go to chipotle every week with my company. On 7/31 we went around 11:30. I had just learned from my co-worker that you could sign up for the rewards program, so I downloaded the app right before I went. I was looking through the app and saw that there was a bonus of free chips and guac when you use scan the awards for the first time and there was even a sign on the menu stating the same thing. When I got to the check out, I asked for the chips and guac and and showed the associate the bonus and she VERY RUDELY told me that you could only use that if you ordered online. I politely pointed to the screen and she cut me off and said ONLINE ONLY do you still want them or not. I said yes and she handed me the bag. Only when I got back to the office did I notice that she didn't even put chips in my bag, she just put the guac.

To say the least, it was quite a turn off.