They could find out about horrible time limits later. "Hey, maybe they've got other... normal things too, right? Like, I dunno, a book store. A movie rental place." Do they have VCRs here? Laser Disc?

"Anyways, let's just go, and if we see someone who looks like they know what they're doing, and they aren't... busy, we'll ask." Actually, they could probably just walk into a store and ask whoever's at the counter, but Umi won't think of that right away.