The Supreme Court won't hear an appeal from a pastor who challenged a state law's noise limit that was used to restrict his anti-abortion protest outside a Planned Parenthood clinic in Portland, Maine.

The justices offered no comment Monday in rejecting the appeal from the Rev. Andrew March. He sued after he said Portland police officers repeatedly told him to lower his voice while he was protesting outside the clinic. March says police invoked a part of the Maine Civil Rights Act that applies to noise outside health facilities.

March says the law "targets pro-life advocates" in violation of the Constitution. A district judge temporarily blocked its enforcement, but the federal appeals court in Boston reversed that ruling.