Out Like a Light by Laurence M. Janifer

By the time Malone reached the Statler Hilton Hotel it was six-twenty. Malone hadn't reckoned with New York's rush-hour traffic, and, after seeing it, he still didn't believe it. Finding a cab had been impossible, and he had started for the subway, hoping that he wouldn't get lost and end up somewhere in Brooklyn.

But one look at the shrieking mob trying to sardine itself into the Seventh Avenue subway entrance had convinced him it was better to walk. Bucking the street crowds was bad enough. Bucking the subway crowds was something Malone didn't even want to think about.