Yathink? Yathink webstores would stop game sales to a single US state, just because that state changed a law? I dunno, I think they'd object alot. In the name of dollars.
They already do that for many things.
Also, they collect different sales taxes, based on location of the customer.
If you don't understand how that works, I feel for you. We already knew you were an idiot, though.