If you (I hate even thinking this) have to have your TT towed is a flatbed the only way to go?

""Absolutely"". By no means should you have the car towed with 2 wheels off the 2 wheels on the ground. I think the manual also states so. Some tow truck drivers will tell you it's ok once the car is in neutral and allow the wheels in the air to spin, that's nonsense.

I know for a fact that 'AAA' would automatically send a Flat Bed truck once you've identify your car as an AUDI if you have to be towed.

Pray to "the powers that be" that you never have to be towed for illegal parking or otherwise, since they do not flat bed the car.