I was going to suggest that you pass this along to Alley Cat Allies, but I see Lizbud did this already.

Grr!

In our city, we have something similar EXCEPT, if you are doing the TNRM as part of a recognized organization, you are exempt. That still doesn't help concerned citizens who help cats, but does ensure that the folks helping them has back up, guidance, and a source of info. Not perfect, but better than the law you posted!