I would've declined it too because I gotta be at work 3 amI had seen on one of these forums that if you can't pick up trips on a ride back, all tolls are reimbursed. Thanks for posting an update, nice trip.
Depending on the time of pick up, as a part-timer I may have declined the trip after being told the destination. I've got a day job and can't easily do a 6 hour round tripper. Not going to let Uber impact where my bread is buttered. Glad the pax realized you were doing him a favor and tipped.