"It's no trouble at all, ma'am," says Shephard. "All of us were new here once. It's only fair to fill folks in same as we got filled in."

The elevator ride is a smooth one, giving the impression of speed without the discomfort. It comes to a halt and the doors slide open onto a vista of... well, mostly passenger automobiles and some motorcycles; larger and smaller shapes seem to be clustered together many, many, many aisles away.

"This here's where we'd start, ma'am," says Shephard, gesturing to the nearest row. "Take a look around first, if you like. Cart ain't goin' nowheres."