"Everything in the States is on a grid layout."
Was that said by the Google rep?
'cause it's completely untrue. Most of the west coast cities are on a grid layout, but many of the older east coast cities are not. And even the cities which are primarily grid-based have some major, non-orthogonal, non-straight thoroughfares, or significant non-grid sections in their city centers.
Outside of major cities, most of the US is on a "converted trails" layout.