Just because the car is new doesn't mean the paint is. It could have been painted months ago, plenty of time to cure. There is no reason you can't wax it.
I'm kind of curious about your
power buffer comment. When I use to detail cars I saw many, MANY wrecked paint jobs because people thought they could buff their own car.
Just hand wax it. I suggest using
Zaino Brothers products if you haven't already.
Chris