I haven't kept up with SEMA's involvement for a good while but they are always on top of nonsense like this and push hard to get antique & specialty vehicles exempted. They have a good track record so checking out SEMA's website may turn up something.
As for the concern over a CDL I wouldn't worry if your not over 26,000 GVW, thats a federal statute and not a state reg.
I do have the feeling and deep concern that the Fed's are scrutinizing every conceivable regulation & law to generate those almighty dollars. So anything is possible.
