I plan to arrive in daylight, seldom drive more than ~350 miles a day, and haven't had a problem getting to the park on time. However, with a Class B, every return to the campground is a new arrival, although it's a little easier to get to your campsite and set up once you know they lay of the land.
Some of my RV trips include professional baseball games, often night games, which may involve returning after 11:00 PM. Lots of night time activities could put you on a similar schedule. I try to be real quiet, and it's probably easier for me to do so than someone in a big rig - haven't needed my leveling blocks yet - but anyone coming or going when others may be sleeping should be as quiet as possible.
