@CamGreezy If the subnet is at the same site then as long as routing is working then you can image. It uses the same tools. There is an issue with WOL (wake on lan) if you have different subnets you need to allow directed broadcasts on your network. But from an imaging stanpoint as long if the fog server can reach it, it should work.
Now if your remote site is connected over a low speed link (like mpls) then you might want to think about installing a fog storage node at the remote location to help with the imaging process.