My Frantic Life as a Cab-Dodging, Tip-Chasing Food App Deliveryman

Update: DoorDash, the nation's biggest on-demand food delivery app, is changing its tipping model .] I had just started my lunch shift when the phone pinged: Uber Eats, pickup at Cocina del Sur on West 38th Street in Manhattan, five blocks away. Great! I pedaled down West 40th into congealing crosstown traffic.