I suspect you're kidding, but you know, having lived through a few very long traffic jams I could imagine some scenarios where I'd be willing to pay for:
1) Rickshaw or cargo bike with a narrow pull along trailer to let me use the bathroom 2) Similar setup with food and drink 3) Similar setup with a few gallons of gas if I've gotten a bit too close to empty 4) More expensive (XL?) version of the service where I am getting delivery from a helicopter (since drones flying over congested traffic is not an FAA approved delivery method)
You might not be able to make this a daily thing, but when things get bad I suspect the margins might be unreal.