I don't know.
Financials aside, I don't even know what this is supposed to look like from an organizational perspective. IMHO the biggest problem Lyft and Uber are facing is not an increase in cost, it's a reduction in flexibility.
You can't afford to pay extra people to sit there on the clock if there's no demand. (plenty of drivers turn the app on in their house and go about their regular day, maybe only getting 1-2 rides in between eight hours of playing video games) Do you forcibly clock people out?
You now have to be really careful about the 40 hours. You definitely can't afford to pay people overtime, and for all intents and purposes you can't allow people to work enough hours to constitute "full time" either. So if someone hits 35 hours or whatever, you have to clock them out.
How do you handle drivers who turn down lots of rides? You have to fire them I suppose?
This is not a problem you can just throw money at. I'm glad I'm not a product manager at Lyft/Uber right now. I'm not convinced it's possible to operate in California anymore.