I think I'd use a car to get as far away from any people as possible, and setup a tent in some remote location.
Or even just a normal camping ground maybe, there would be no reason I'd be disturbed by any dangerous people trying to 'help' me.
Then set a scheduled message of my whereabouts to my family at least a couple days later so they can tell the cops.
A tent in a nice enough place is plenty good enough for me, I don't have to ruin the car with vomit or other nasty stuff from a dead body.
Or traumatize any hotel staff.