Actually maybe, if it's late August.
Park attendance really starts dropping off the last week or so, as people have to start heading home to get their kids ready for school.
Earlier in August... ya, not very likely.
I lived around the park for many years and the last of Aug attendance starts dropping.
In fact this camground closes in mid Sept
Attendance drops like a rock after Labor Day, and even more steeply in Oct.
Even though Oct and April (if the roads are open) are the best times.
Oh ya, there are road closures for construction.