Pretty cool map! Those are filming locations, though, aren’t they? I would think that some of the fictional locations would be closer together. Also, it kind of looks like most of the characters are heading towards Terminus, which appears to be Macon, so they should be heading east & south.
Drove cross country with wife and kids last summer. Made a stop out of Senoia. Very cool to see the real town, along with the WD set pieces (The City Hall is a facade, the barrier busses are parked in a nearby lot). Ate in a nice cafe that was used for a scene.