It's not out of oil, it's at it's minimum safe level. But I very much doubt Audi will say that is excessive oil usage anyway if it's taken 3000 miles to reach the minimum oil level.
If you are concerned contact your local Audi dealer and get their opinion and at least then it should be noted that you've raised a concern and if it continues then you've got more history to back up your argument.
How do you drive the car, like there's an egg under the throttle pedal or like it was stolen? Sometimes engines like a good thrashing to keep things working better, I used to see engines which always pootled about and they had greater issues with oil usage than engines which were worked harder.