It's interesting to read those regulations; I don't know what they are for our commune. We have always tended to be quiet all day on Sundays and to make a noise at other times. We didn't know about the wretched sacred French lunchtime - and note that it stretches between 2 and a half and 3 hours!!!!! Can you imagine another country saying you had to be quiet at lunchtime?
I suppose like all things, it's a question of moderation in all things and regulations to fall back on if someone is a real persistent pain in the neck.
Farmers are not the specified DIY-ers or gardeners affected by the regulations quoted, so I imagine they can make a noise all the time.
"Outside of a dog, a book is man's best friend. (Inside of a dog, it's too dark to read.)" Groucho Marx