There IS a study bill in committee that will allow preemptive lawsuits against any city/county that has any such law, and allows for seizure of assets to cover all legal costs plus treble damages. Once it passes, the results will be amusing.
For now, you can just IGNORE the ordinanaces because they are illegal, and ignore any resolutions because resolutions aren't laws and are unenforcable. Only state and federal laws matters for firearms in Iowa.
For more information, there are several long threads with good discussion over at http://www.iowacarry.org/forums1/index.php
Here's a short one: http://www.iowacarry.org/forums1/ind...pic=21637&st=0