Manhattan Transfer

Description for MANHATTAN TRANSFER by John E Stith:

THE ALIENS HAVE LANDED...AND MANHATTAN IS THE ULTIMATE SOUVENIR

When Manhattan -- and everyone on it -- is kidnapped into space by some unknown alien force, the humans trapped on the island are faced with a baffling (and terrifying) enigma. An artificial dawn reveals that the city, encased in a bubble, rests on a vast plain, surrounded by dozens of other bubbles containing a multitude of alien cultures. Is this some sort of cosmic zoo exhibit or part of a scientific experiment gone horribly awry?

Or perhaps fresh groceries?