tunneling your computer to your computer at the restaurant is kinda wierd if you think about it. You kinda need internet to get to the restaurant through the vpn, so that defies the point. You can setup a tunnel to connect from your computer to your restaurants network or computer, not neccesaraily the internet. and whatever you use via the tunnel, is still considered the same amount of data as if you were not using the tunnel. If you download a 5 mb video to your computer, without the tunnel, its the same data size if you transfer the 5 mb video through a tunnel. So no, it wouldnt help much and to even get the tunnel to setup to use the internet, though you need the internet in the first place is pointless. It wouldnt work and would prob cause more data transfer, therefore more money. data works no matter in what form or medium, its always 0s and 1s, data transfer is data no matter what way you use it