(5) If any vessel or aircraft required to be cleared under this section departs from any port, airport or other place in Saint Lucia for a destination outside Saint Lucia without a valid clearance, or after clearance calls at any port, airport or other place in Saint Lucia without the permission of the proper officer, the master or commander, except where the departure or call was caused by accident, stress of weather or other unavoidable cause, commits an offence and is liable to a fine of $5,000.