Earlier quoted context omitted.
I'm pretty sure that's legally fraud, but yes, there's a good chance you'd get away with it.
If it is fraud, then at what point is it not? If I used it for a day/week/month before bringing it, is it ok? Intent matters I suppose, but how do you prove intent to circumvent import duties, versus just bringing my stuff? I genuinely don't know, seems like a lot of gray area.
If you travel to the USA for a week and buy something, that's subject to import duty.