Shipping Promotion and Shipping Options

Hello All …

I have a question/problem with a shipping promotion and shipping method that I set up.

My client wants to offer free shipping to all US retail sales but want's to be able to select the carrier with the best price.

To do this I created a Shipping Method called “FREE SHIPPING” and a promotion that requires the order to be shipped to the US and a retail order.

The problem is that the “FREE SHIPPING” method displays as a shipping option for all locations.

The probem just revealed itself when his first international order was placed.

Is there a way to edit something so that the “FREE SHIPPING” is restricted just to US and US territories?

Thanks so much for any and all help.