I'm actually a little uncertain.
I admit that I'm a tad worried that, if the effect that replaced the money with gems really is sensitive to current market values, Nue really will end up taking a loss on this, as the gems get replaced with less money than she'd expect to get for them, and maybe even less than the drinks sold for them were worth. Of course, since the money appears to really be physically taken, and equal amount of it would probably need to be replaced, right? Really, there's no way to know. It's just a nagging worry on my part, is all.
If not for that bit, well... if things have gotten sluggish now, there may not be much need before the night is out, but it probably wouldn't hurt to give her some discretionary powers in that regard. Just in case.