Reportedly, there is major traffic backups after the earthquake and the traffic lights are out, and the pedi-cab is the only "Lyft" available. Yet shortly after they get going, they're shown driving down a major street with traffic moving along nicely and all traffic lights working.
As Madison and company are moving along in the pedi-cab, it often alternates between them riding in the far right bus and pedestrian lane with almost no vehicle traffic, immediately to them riding in the middle of the street with vehicular traffic moving slowly behind them.