I drove for Uber for a couple of months in my Leaf when my lease was about to expire and I still had thousands of miles to go. It was kind of fun and I met a bunch of friendly people, but it's no way to make money unless you put in the hours to meet certain incentive thresholds for Uber (which will vary depending on your city) and I wasn't interested in doing that. I basically never went online unless surge pricing went to at least 2.0. You can sit at home or in a coffee shop while waiting for a ping, but be aware that your location will show up on the Uber app so technically people could figure out where you live with a little effort. The people are generally cool, but one ass hole can ruin your whole experience, especially when it's an entitled dick hole who treats you like you're his/her personal valet and servant for a $2.60 fare.
Select rates are much better, but depending on your location, Uber might force you to get X and Pool pings so you can't get exclusive Select pings. Demand for Select is also much softer, and from what I've heard drivers who know good areas for pings guard that info carefully, and one Select driver told me that he's had other drivers knock on his window and not so subtly threaten him to get out of "their" area.
If you want to try it, it isn't a bad way to make some extra money, but I'd be very wary of doing it in a car as expensive as an S and I would make absolutely certain your insurance won't drop you if they figure out what you're doing.