The right to freedom of speech, and the right to lawfully protest, does not give any person or group, the right to occupy that what is not theirs to occupy. Nor does it grant the right to interrupt, spoil or interfere with others right to enjoyment and use of a public place.
This is especially so, when you don't even live in the town or city you occupy.
I also find it rather ironic that those involved in what should have been a powerful, but short sharp shock for the Global Establishment, use the word "occupy" when so many are also rightly against unlawful occupation by others.
I am all for activism, but I am also a great believer in reality, something sadly missing with so many dedicated followers of fashionable causes.