Drivers License USA citizen has EU Austrian License needs Polish

I have a valid Austrian LKW Führerschein, am American citizen living now in USA. I am moving to Poland next year and I need to obtain Polish license. I know it is fairly simple to exchange EU license, BUT what about EU license held by American ?
Can someone call, when they get the time, to License Agency and explain the condition to see what can be done ?
Thanks
James

I don't see a problem - it should be the same like for EU licence held by a Polish person.

As far as I know you don't even need to exchange it - since it is EU, you use it in whole EU.