I'm outside the US.
Here we dont look on the Union flag the same way as you do with your flag. It's still considered a bit ostentatious to fly the flag on pole outside your house...although oddly enough I see plenty of Cornish flags (the cross of St Piran) flown over the border in Cornwall. If you know your history of the British Isles you would understand why.
To circumvent a covenant on the property? Caveat emptor I would say. But I think a "no antennas" covenant here would have lawyers rubbing thier hands with glee!