Nor in the UK. Even IF they were allowed to take pics over the fence, and even IF they deemed the greenery a ‘nuisance’ or something similar, surely they must issue a notice first, requiring the homeowner to do something to remedy the situation. To just ‘force’ entry and damage your property (greenery) without notifying you in advance or giving you a chance to remedy any offence, or to appeal it, seems unconscionable to me.
An Englishman’s home is his castle and all that (apart from the umpteen assorted public and private bodies with right of entry). But they do mostly need to give due notice unless a genuine emergency is underway or serious offence is being committed.
Did they ever tell you exactly what the justification/offence was?