There is no local or state police force combined anywhere in this country well enough staffed to effectively police this type of venue. A big thanks to the PA National Guard for pitching in to help when needed. That's what they do. One of the many things they do to protect your safety. Anyone not entirely supportive of the job our National Guard does, whether it be in in the streets of Pittsburgh or the deserts of central Asia is an ungrateful, paranoid, ignorant SOB.
By faith Noah,being warned of God of things not seen as yet, moved with fear,prepared an ark to the saving of his house;by the which he condemned the world,and became heir of the righteousness which is by faith Heb.11:7
Tench Coxe: "As civil rulers, not having their duty to the people duly before them, may attempt to tyrannize, and as the military forces which must be occasionally raised to defend our country, might pervert their power to the injury of their fellow citizens, the people are confirmed by the article in their right to keep and bear their private arms." in "Remarks on the First Part of the Amendments to the Federal Constitution," under the pseudonym "A Pennsylvanian" in the Philadelphia Federal Gazette, June 18, 1789.
Here is, in part, the Constitution of Pennsylvania. Judge for yourself if the Police Chief had the authority to declare this an UNLAWFUL ASSEMBLY.
CONSTITUTION OF THE
COMMONWEALTH OF PENNSYLVANIA
DECLARATION OF RIGHTS
All power is inherent in the people, and all free governments are founded on their authority and instituted for their peace, safety and happiness. For the advancement of these ends they have at all times an inalienable and indefeasible right to alter, reform or abolish their government in such manner as they may think proper.
Right of Petition
The citizens have a right in a peaceable manner to assemble together for their common good, and to apply to those invested with the powers of government for redress of grievances or other proper purposes by petition, address or remonstrance.
No Discrimination by Commonwealth and Its Political Subdivisions
Neither the Commonwealth nor any political subdivision thereof shall deny to any person the enjoyment of any civil right, nor discriminate against any person in the exercise of any civil right