I would be fuming / fulminating / ranting / spitting angry, BUT my yard IS messy by the standards of my kill-everything-and-mow-it-down-to-the-dirt trouble-making neighbor.
But the fact that they hauled away my COMPOST heap even though it was not in line-of-sight to the neighbor even AFTER they hacked down things I didn't want touched will not soon be forgiven.
What they did to my poor, eager-to-please baby bamboo still burns me every time I see it (several times per day).
But I have to put it in perspective: the owner of the park keeps announcing that she SETS TRAPS FOR PET CATS because she doesn't like the fact that half the park has outdoor cats. Stealing my compost is nothing compared to that. Either she lies like a rug, or the managers TELL her they are setting out cat-traps but never do it, since THEY at least are human beings instead of some poisonous fungus shaped like a person.
I conclude that no one's pet cat has ever been trapped from the fact that no one has ever set fire to the main office or sued her into poverty.
And my next-door neighbor is a clear-cut certifiable lunatic, so I should probably be glad that she doesn't just ram her car through my yard on a whim.
Every day is an adventure. This park owner is SUCH a pain that even our HOA is 20 times more reasonable. THEY protect us from HER (partly protect us).