So long as it is peaceful no problem. Anything else from either side and the full weight of the law should come down on the heads of those that initiated the non-peaceful action.
Cali is going to be very different then a remote stretch of Arizona. For one thing, the open carry gun laws in Arizona made the traitors quite hesitant about initiating actual violence. In Cali, the traitors will know that any Minutemen wandering around the boonies will be unarmed, so there is a greater chance of being ambushed or shot at.