Let's crawl before we walk....there isn't even a deeded road easement past the Rocky Point area north yet. I.E. technically there is no "road" access to any property north of that point as no surveying has been done to establish the 40' easement and the GOB has not practiced their right of emminent domain to claim property for that purpose. A couple of subdivisions have been developed with their interior roads laid out but there is no road laid out to reach their borders and therefore the border of Mex. /Belize.
By the way I have some great aerial photos of that ship channel taken a couple months ago on a charter flight up to the area if anybody wants them.