Braintree MA turned up on iStockNow, called them and learned they only got one, one single unit in, and twenty people had lined up since 9am. He said they'd get more tomorrow probably, like 5-6, but insisted that the new $460 Zelda Bundle was the way to go and I could return, for cash, anything I didn't want. I was skeptical, so I visited my local Gamestop to see what the situation was a bit closer to home.
None had come in, but will probably arrive tomorrow, or maybe Friday. He confirmed like I suspected, you can't trade parts of the bundle for cash, but he did offer to trade in stuff for other things, like I could trade in what I didn't want and use it to pay off Splatoon 2, for example. Sadly that bundle got removed shortly after that and a new, downloadable games bundle popped up, which would be impossible to trade in.
So I guess my game plan is to head in tomorrow when UPS arrives and hope for the best.