I did one of these when they were first posted, and I had my choice of scenarios. I took a hard pass on the one where I had to act drunk. I went with the "misplaced my license" shop on a day when I was working from home, so $5, and potentially a $20 reimbursement. I picked the cheapest qualifying booze I could find, and I was all in at $17.90.
The delivery person was an older guy - very nice - and he did the right thing and didn't give me the booze. I felt soooooo bad, because I knew he wasn't going to get paid. Sure enough, I checked the app later, and they'd reversed the entire charge, including his tip.
I emailed the scheduler and asked if the drivers who did the right thing received any type of compensation for this. He said, "Yeah, they get paid." That must be the $3 a previous poster was referring to.
I don't know if it was a mistake on the MSC's part or not (I'm assuming it was), but they paid me the $17.90 as well as the $5. I'd give him the money if I knew how to find the delivery guy. I doubt he was Ubering just for the fun of it.
If your path dictates you walk through hell, do it as though you own the place. -unknown