Then there’s corp scrip, a specialized form of currency that
the megacorps issue to do things like pay their employees. It’s no good
outside the issuing corp, and in theory only authorized corp employees
should have it, but in practice there’s a thriving black market in corp
scrip—one that even has its own underground “stock exchanges.”
Emphasis mine for obvious reasons.
If corp scrip's the only way to play, only Horizon employees could eat there. And people who got it from the black market, but it doesn't really strike me as that kind of hotel/restaurant.
Besides that, yeah, a businesswoman would know that, imho someone with 4 hits on their restaurant knowledge check would too :p
But anyhow, corp scrip it is... guess we'll have to pull the whole kid getting lost thing a bit earlier?