OU has greatly improved their move-in process. When DS moved into Walker 10 last fall, we didn’t really do anything at all. We checked in at the Noble arena parking lot (never had to get out of the car), followed the established route from the parking lot to the dorm, stopped in the designated lane outside the dorm, opened the hatch, and then watched while volunteer students unloaded our car into a bin. We then drove the car back to the arena parking lot, took a shuttle back to the dorm, and waited in his room until the students delivered the items from the bin directly to his room. Unbelievably easy. We did drop his bike off at the dorm the evening before so the bike rack wouldn’t be in the way.
And this was even though my son moved in a week early for marching band. It was still a designated day because several programs start the week before classes.
Note that this does depend on you moving in at the appointed day and time.