It wasn’t exactly a plea for environmentalism, though—it was an ad for UberPOOL, part of Uber’s big push into markets across Latin America. As Bloomberg points out, Uber already does more business in Mexico City than any other city it operates in, and Brazil is its third-largest market after the U.S. and India. Uber sees Latin American countries as generally easier targets for expansion than either of its top two markets.

In the wake of a costly war with Didi Chuxing in China that finally forced Uber to wave a white flag, the company is going back on the offensive. And that, apparently, involves accosting drivers in gridlock with a swarm of drones.

(Read more: Bloomberg, “With Its Sale in China, Uber Drives a Better Bargain”)