Cars with US specifications

When I had to move to Belgium from the States about 4 years ago, I decided to bring my almost a brand new car with me (the move to overseas came as a surprise) and I was ready to pay to get the European specifications. It then turned out that as one does not have to take the state inspection for new cars, I could drive my car without any issues.

Last week, however, I got the inspection invitation. The 'problem' is that I am leaving in about 4 months and am wondering now whether there are ways to get a waiver for those changes? I am obviously going to ask this from the inspection people but it never hurts asking around first. Thanks!