From The Federalist:

The arrest warrant shows Houck accused of “attacking a patient escort” at a Planned Parenthood facility in violation of the Freedom of Access to Clinic Entrances (FACE) Act, a federal law used to restrict the actions of pro-life protesters and counselors in front of abortion facilities. Mark, who also runs a men’s ministry devoted in part to rescuing men from pornography addictions, made a habit of driving two hours to Philadelphia every week to spend his Wednesdays speaking and counseling in front of the Planned Parenthood – Elizabeth Blackwell Health Center.