time to enforce the rules and regulations now

If this is considered ok by the city then I’m going to do it also

I will also create a barricade in front of my house if it’s ok with my neighbors and the city will ignore this violation

Fail to see why this is an issue. The house to the East has a swale and rocks in the right of way, two houses down are trees and to the East is a homemade stone retaining wall preventing parking and further East are curbs with no parking signs. Obviously this is some personal vendetta that isn’t being applied to anyone else on this block for it to be so frequently reported.

The point is well taken
The home owner is squatting on Public Property

Why is it okay for the adjacent property owners to block the right of way? So if this person planted a row of shrubs or trees, how would it be so egregious?