Nope,
Bushy Run is Administered by the Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission and covered by state preemption.
See
http://www.bushyrunbattlefield.com
I have OC'ed there before
Pennsylvania Historical and Museum Commission (PHMC), the public agency that owns and operates the Fort Pitt Museum and Bushy Run. They are trying to close both due to budget cuts from Rendell.
An OC Activist and 1 of the 3%
Ed Stephan