Why the ban on mandatory RFID implants should be Federal

The California legislature recently banned employers from mandating RFID (Radio Frequency Identification) implants for their employees.  While I’m glad I’m covered in my state, why isn’t this ban being implemented at the Federal level to cover every citizen?  I’m not suggesting that we ban the devices; I’m suggesting that no one should be forced to stick on of these in their body just to get a job.  I’ve covered the issue of RFID many times before and I’m not fundamentally opposed to RFID technology or RFID implants, but I do oppose the idea that anyone should be forced to implant one in their body and it would be just as offensive if my employer asked me to tattoo a bar code on to my forehead.