Chipotle Mexican Grill

The staff had mistakenly put another customer's order in my to go bag. When I returned to the store the employee operating the cash register asked me what the problem was, when I told her what happened they said "oh okay" and walked away. The employee working the to-go station asked me what time my order was for, then told me there was only one person who had an order for that time. When I showed them the email confirmation on my phone showing the order, they said "well you have to go through the line" (there were no customers in line at this point, I wasn't trying to cut in line). The person working behind the food counter was fast and helpful, but not one person acknowledged the mistake or apologized for the inconvenience and the first two people offered no assistance (one was surely responsible for the mistake in the first place).