An asylum seeker was spotted breaking into a British-registered car on his trailer before hiding himself under a coat on the back seat.
His attempt was witnessed by the Daily Express at a garage just a mile from the port yesterday.
While the driver was filling up the illegal migrant crept up to the trailer carrying three vehicles and slipped unnoticed into a blue Peugeot 307.
Alerted to the attempt, the driver forcibly dragged the screaming man from the vehicle by his feet.
The bloodied, one of scores loitering at a service station, then spat in his face as his friends threw rocks at the vehicles.
The extraordinary scenes will send shivers down the spines of thousands of British families using the ferry and Eurotunnel terminals this summer as they return from holiday.
Critics said the lawlessness now gripping Calais was evidence repeated attempts to stem the migrant tide into Europe had systematically failed.
Ukip home affairs spokeswoman Jane Collins said: “This is the reality of the EU’s freedom of movement and the open border to anyone claiming they are a refugee.
“It is an unacceptable situation. We must clear out the camps again and we must turn back boats in the Mediterranean.
”Yesterday I witnessed large gangs of hooded migrants milling around the busy but un-policed services off the N216 approaching the port. It is a notorious stretch of road that has been laid with traps, including burning trees, so migrants can hijack traffic forced to a standstill.”
The fuel stop, popular with truckers, is one of the last places to fill up before the ferry terminal and has become a hotspot for illegals.
It is a short walk from woods where an estimated 1,500 migrants are now living and being fed by British charity workers.
Even in daylight the area is swarming with large groups of asylum seekers who hide under motorway bridges and in ditches waiting to launch themselves into the back of vehicles.
In just 30 minutes yesterday I witnessed two attempts by illegals to stow away on vehicles that had stopped to fill up.
Shortly before the migrant was hauled out of the car by the angry driver wearing shorts and flip-flops another tried to untie a canvas cover on the back of a truck in an attempt to creep inside but was spotted and pinned against a wall.
Rhys Williams, of the Road Haulage Association, said: “All vehicles are vulnerable to migrants, even cars on a transporter. What we witnessed was a driver having to physically remove a migrant himself because there was no police or security around. And he was met with hostility and violence. This is the sort of scene our drivers face every single day.”
Independent MEP Steven Woolfe said: “These scenes are shocking for people witnessing them for the first time but unsurprising to those of us who see it every day. The problem in Calais has never gone away.”
Officials in northern France say hundreds of migrants arrive every week, many of whom reached Europe by crossing the Mediterranean from Libya.
A regional government source said almost all of the illegals in Calais are Africans who have come up from Italy.
Latest UN figures show that so far this year 115,109 have reached Europe by sea with 95,215 asylum seekers arriving in Italy after crossing from north Africa with the remainder pouring in through Greece, Cyprus and Spain.
Italian authorities say the majority are aged 20 to 30 and have left Nigeria, Bangladesh, Guinea, Ivory Coast, Mali, Eritrea, Sudan and Gambia. Once in Europe’s border-free Schengen zone they are free to make their way to northern France from where they attempt to sneak across the Channel.
Jean-Paul Mulot, the Hauts de France region’s permanent representative to the UK, said: “Strong co-operation between France and the UK is needed to protect lorry drivers, ferries, tourists and businesses.
“The problem needs to be addressed locally but also at source, notably in Libya, where most migrants cross the Mediterranean to go to Italy and then Calais. We need an international coalition to tackle the issue in Libya as migrants are now coming from Nigeria, Mali, Guinea, Eritrea.”
He said President Emmanuel Macron was trying to sort out the problem but had not yet succeeded.
Mr Mulot added: “He needs to get the support of the British Government on this issue.”