We are picking up a hire car in Saint John where we will stay several days before catching the ferry to Digby. After touring Nova Scotia we will return to New Brunswick returning the car in Moncton. Can someone advise if there are toll roads and if so how the toll is paid. Can it be paid on entry or exit or is payment only automated with a vehicle tag. Obviously we do not want to receive fees from the hire company for unpaid tolls. Information is appreciated.