The CS rep that responded was a nice guy, but had no clue what to do. We started spitballing together some possible ideas, and I suggested that we just let it go and Wallet will eventually figure out that the transfer didn't go through, and deduct the money back from my Wallet account. He thought that might be a good idea, but had no further ideas beyond that.
That was Google Wallet, and that was $1,000 floating around. I can't imagine the level of customer service available to anyone who hasn't actually put money directly into the equation.
Do they actually do that thing we all saw in The Internship, where they have random engineers field support calls? Because I felt like I was talking to a random engineer.