I've been to Geogia, in the Caucasus-Mountains, not the southern US-State. There for example, it is common for Highway-Police to set up checkpoints, and if you are a foreigner, you can be sure to pay them some bucks, 25$, 50$, 100$ somewhere in that dimension. To be sure, this is 'illegal'... No one cares to stop the police from doing that though, but it is still illegal.
It is something entireley different, to always assume your car can be searched and all your cash can be stripped from you 'legally'....