Whether the ride was incurred by drunken error or not, I dont think you tip on a fare that large.
The driver’s making a decent amount of money for the day, much more than he would had he driven a random assortment of smaller fares.
If anything, I’m surprised the rider didnt try to negotiate a clawback: $800-$1000 for the trip. As someone who negotiated a contract non compos mentis, he has been taken advantage of, and would seem to have a chance at a valid legal argument.
