This is the sort of thing that makes businesses fail.
We have a cafe near us who, despite being virtually empty will not alter "their policy" and within 3 days of opening they had a bad reputation and haven't really got off the ground, which is a real shame as the area is a goldmine had they just been a bit more flexible, they would be thriving.
Their policy is to take orders at the till and take money for that particular order, you are then supposed to find a seat and they yell at you when the order is made so you can go up to the counter again and collect it.
I went in at about 3.00pm on the third day of opening, despite several local friends telling me about their frustrations with this way of operating and gave it a go. On this occasion there were three of us and we ended up having 3 coffees each, a sandwich and a cake, but it was progressive so we started with a coffee and a sandwich and then had another coffee and cake and then another coffee, we were there about about 1.5-2 hours. Each time we wanted something extra we had to get up, go and pay for that one item, sit back down, wait to be yelled at, go and get the item and sit down again. It was an absolute rigmarole!
Meanwhile, the two staff behind the till, stood idly around as there were no other customers in the shop and the two owners sat on their laptops at the back of the shop ignoring what was going on in their new cafe. I am still flabbergasted by the sheer stupidity of it! I have never been back.