Honey bees are dying but you can help native bees in your area. Find out what they like and plant that shit. Also just letting weeds grow helps a lot of species.
I get leafcutter bees at my place as well as a few other solitary species
No, the city rolls around and if there are things sticking up out of the ground high enough outside of a flower bed they take pictures and send you a letter
The actual city sends a fine. If you don't clean it, they send a crew. If you don't pay for the crew, they lien the property.
Source: got letter from the city a week ago.
In fairness, I've been dealing with a lot and there were some areas that looked like we were abandoned. I've been meaning to clean out the unwanted stuff so the flowers can grow. My lawn is mostly moss and clover and that's not what they cared about.