Per hour per hour? Ok, let's see...second-order integral (these always confuse me because rates are stepping up a dimension but derivatives are stepping down a dimension, but that's neither here nor there), assuming no constants, so they start at 0$/h and there's no sign up bonus...
Got it. After one day, they've made $3423.33
A week gets them over two million dollars, putting a solid, but not insurmountable, dent in the transportation budget.
A month over five-hundred million, easily bankrupting most midsized towns.
After a year they've made almost half the entirety of the US GDP.
A transit bus lasts an average of 12 years, and even if you don't run it nights or weekends, that's still around 50,000 hours of driving.
That's $500k at $10/h, and if you run a bus 24/7 in NYC you could spend $3M over the course of the bus's life.