IMHO she errored..she eats the charge. Payment is a part of first consult. She didn't mention it, she didn't attempt to get payment while u were there which she said is her policy. So u are not responsible to pay. Simply thank her for covering that and tell her u will abide by her policy should u chose to make a future appointment. She is responsible to manage her time. If she went over time, that was her choice only she knew her schedule. That might be something you consider in selecting her. Will she keep u waiting for less than an urgent issue.