If I remember right, PRB-1 is also flaky in that it doesn't define what must be allowed and what can be not-allowed. Same thing here I think. It's been a while but I fought the City of San Jose with PRB-1 and won. This was shortly after N6TV ran the gauntlet with San Jose and also won. Thanks Bob!
Here in Maui, I have an HOA architectural rule that limits any antenna to no higher than 4 feet.
I asked for, and was granted, a variance for a 70 foot tower. It can be done, but you have to push and follow procedures..
73, Alan AD6E