However, getting legislation like that passed and enacted into law would probably take months...perhaps even years in conservative states.
Yes, that should ultimately be done.
In the mean time, what this congressman is (allegedly) doing is a good idea for the short term. So far as I can tell, it doesn't hurt that the request is put in writing by members of Congress. Haven't "we" all been told that only Congress can address this issue? Well, here we go. Looks like some of them will try.
It could be passed in a week. It's constitutional and would stop a Usurpation dead in it's tracks. In addition, if the legislative bodies don't want to do it, there is always the ballot initiative approach. We The People can do things. Californians, you listening?