Can't find bike-specific info on anti-harassment, but these general anti-harassment tips might be useful:
http://www.stopstreetharassment.org/wp-content/uploads/2013/12/SSH-KYR-Pennsylvania.pdf
Quoting the article:
"Harassment
Title 18, Chapter 27, § 2709
As noted under the “Verbal Harassment” section, in Pennsylvania, the general harassment law prohibits following someone in or about a public place.
Penalty: Harassment is a summary offense in the state of Pennsylvania, punishable by up to 90 days in prison. Using lewd, lascivious, threatening or obscene language is a third-degree misdemeanor, punishable by up to 1 year in prison.
Reporting Crimes to the Police
o Call 9-1-1 for help if:
o The crime is in progress
o You or someone else is physically hurt or have been threatened with physical violence
o You can provide information about who may have committed a crime.
o Call the local police office’s non-emergency number to submit a report afterward. For example, in the City of Harrisburg, the number is 717-558-6900; in Philadelphia, call 311. Be prepared to provide them with:
o When it happened (date and time).
o Where it happened (street location, store location, bus line or bus stop, etc).
o Who is reporting (your name, contact information).
o A description of what happened.
o The name and contact information of witnesses, if you spoke to any.
o It can be helpful to include the law the crime falls under, such as Disorderly Conduct,
Title 18, Chap. 55 § 5503.
o A description of the harasser/s.
o Many police departments also have online reporting forms, for example, the Pittsburgh Bureau of Police has an online reporting form.
o Some police departments also allow you to anonymously send a tip about a non-emergency incident, for example if you see a group of people routinely harassing passersby at the same location. Visit your local police department website for information.
Once you’ve reported a crime, if you’ve provided your contact information, within a few days, you will receive a call with a police report case number and may have to answer follow-up questions. Save a copy of the police report for your records."
I also found some articles regarding harassment in Portland, which may or may not be applicable here:
1.
http://bikeportland.org/2011/07/20/bike-law-101-harassment-and-how-to-deal-with-it-56563
2.
http://www.stc-law.com/bicyclist-harassment.html