I entered the park at W. Yellowstone pretty early. Not much traffic during my short jaunt to Madison Campground. But one car did pull along side me. The woman in the front seat said "Hi, Dave." It was a woman who had been on my cross country tour the previous year.
The next morning I got an early start to Grant Village. Most of the car/RV crowd at Madison was still asleep. Maid it Old Faithful with little traffic, but made the mistake of hanging there to wait for the geyser to go off. The rest of the ride to Grant Village was not fun. I nearly got doored by someone in an "animal jam." Luckily, I was going up hill slowly. Turned out there was no animal to be seen.