For the record, autosurgeon and I disagree on this.
He has been around longer and has looked into this more than I have, however, I feel that CADL v MOC changed everything. In my interpretation, before CADL we had a list of preempted entities. After CADL, we now have field preemption. (Before CADL - these entities are preempted. After CADL - only the Legislature can set the rules)
If push comes to shove, it will probably take another court case to decide the matter. In the meantime, err on the side of caution with autosurgeon.