You bring up valid points which somehow I sidestepped. I was thinking that if they should want to station themselves something like a mile back from the actual border (river), then it certainly is going to be private property. There are levee roads however and rural crossroads as you mentioned, the distance from the river would have to be determined in order to effectively use public access. All those things could sure produce enough access to be quite effective in this effort.
At any rate, I am bustin' with joy that this issue is not going to just go away or be swept under the governmental rug as easily as I'm sure they first thought...
Keep it up Freepers, what a network of "outsourcing" of information.
Most rank and file BPs totally support this effort, and if approached correctly, will advise MM where they might be advantageously placed as "extra eyes."