supergirll, I'm not sure where in Michigan you are but if you have a Family Fare/Prevos near you, check there. Meijer was carrying it, but I'm not sure they still do.
Another option would be KC Masterpiece Premium Classic Blend BBQ sauce. It has 1 gram of carb per tablespoon and is sweetened with a combination of Splenda and Acesulfame K (AceK) and has no partially hydrogenated oils in it. I got that one at Meijer and my whole family likes it.