Unless someone is actually going to Pokemon and complaining about getting product early, then not much would be done about it. The majority of sales come from the big box stores anyway. I'm sure they don't want to rock the boat too much over some random driver's mistake. And with each individual Walmart having its distribution handled by various vendors, it gets quite messy trying to actually follow the trail of crumbs. As for local cardshops, they've always gotten the short shrift when competing against the Walmarts and Targets. The only way to combat that would be to offer shops some form of exclusive product; like box toppers and special blister promos. But Nintendo seems to care more about promoting that kind of thing via the chain stores anyway. Like with the BW starter boxes. Originally certain ones only shipped to a certain chain.