This new law is not going to just cover sidewalks, it also covers all business parking lots, parks, and anything else that is not a road in the city business areas. So its fine if all you want to do is ride threw town and not stop for any reason. But lets say you want to take your bike out and pay bills or go shopping, get something to eat.
Your not allowed to have your bike in a parking lot or on a side walk. So I'm guessing the people that tried to make me look dumb for thinking this was bad would be happy to slap on a kickstand (if you don't already have one) and park your bike on the side of the roadway like a motorcycle?
The way the laws are enforced here already is your not allowed to have a bike in a no bike area even if your pushing it to a place to lock it up.
As far as fighting the city it won't happen. These people have been in power for ever and no one successfully overturns any thing they do. About a month ago they took away the ability for disabled vets to ride there ATV's down 3 miles of nearly abandoned beach to a designated surf fishing area. No one got hurt, no one complained. But now a 60 year old man with one leg from fighting for this country is told if he wants to continue fishing he needs to walk his gear to the fishing grounds.