The Border Agency ordered squatters to leave their makeshift homes in Hendon last month.
Dozens set up camp on a disused football ground, claiming they had nowhere else to go.
They were offered flights back home to Romania.
Watch the report from Rags Martel:
More top news
After his arrest, Apopei described his girlfriend as "a witch" and paced around his cell ranting about devil worship.
Controversial police chief Cressida Dick was today named Scotland Yard's first woman Commissioner.
Police accidentally sent letters to seven people killed in the Croydon tram crash, inviting them to a survivors meeting.