I am reporting this on behalf of my father, who was a 23 year old teacher at the time.

Driving back through rural Northern France towards Calais, my father and his 3 friends were driving through the night to catch the ferry to Dover.
My father described  that he and his friends saw a dome shaped object In a field 200-300 metres away. It was landed. He and his friends dimmed the car lights as they were terrified that the entity would see them.
My father described the dome as being about the size of a 3bdrm house with panels covering the exterior.  The panels emitted light and were  fluorescent, but he was adamant that they were not colours that we could identify on earth.  As it was the middle of nowhere, they were sure that the object was a landed UFO.  The nearest farmhouse was a few miles away, and whilst they tried to wake the farmer there and show him, they could not.
The next day, a newspaper reported that strange lights had been spotted in the skies over France.