Think of it this way, maybe these roads are not accurate, but maybe the company that makes those spaghettio's doesn't exist either? We gonna get upset that a company with that name doesn't actually make Spaghettio's?

Things don't have to 100% match reality, this could be an alternate universe.

 

Honestly I think the writers were still in Georgia mode. There's a State Route 16 and a Highway 23 there that intersect.

Sorry I'm a little late to the thread, just now catching up on TWD and thought I'd throw my two cents in.