:giggle:It is more like they don't care if you leave the country but they want to make absolutely sure that you are eligible for entering the country. The bags just incidentally go for the ride attached to you, and sometimes they care to check what you are bringing in, but that is usually quite rare. Just your little declaration on a form that you are not being naughty is enough to satisfy them.
I think they will be way more worried about any germs I am bringing from the farm, than about anything I might buy (I certainly can't afford much). I did some more research about the farm animal questions, and it will probably satisfy them that I am not going from a farm in France to a farm in the US. They will, of course, want to see my shoes and probably disinfect them. I wonder what kind of solution they use.