Had a moderately heated discussion with a Dutch couple last year with a huge Concord plus double axle trailer with a Porsche TOAD at Benicarlo Aire ... When I refused to move our 5.99m M/home ('because you're blocking our view of the sea, and you're not a proper camper anyway!'), I explained that this is not how Aires worked. It is first come, first served, and, because he was parked on the street, being too long to get on the Aire, he was breaching the local prohibition on street parking for M/homes ...
Steve