Looks like the only part of the course that abuts a public street is the 4th green and 5th tee - so maybe that's the hole you were referring to? I don't doubt something like that at all. They are always trying to expand and buy more property.
Just this last year they were trying to buy a bunch of land from the neighboring golf course so they can push back the 13th tee. http://www.golfdigest.com/story/report-augusta-national-close-to-deal-to-lengthen-iconic-13th-hole
There was also a story about how they bought some property such that there is only one more remaining piece of land they don't own on that particular block. Here it is:
I like all these and they seem to be simpler and more trusting.
I gigged a little at repairing the green allowances. I absolutely agree we should be able to do it, but I wonder a bit at how retentive some people might be about it, especially on long putts and how much time they'll chew up....But then I realize I'm second guessing others instead of just gut checking how it works for me - and I stopped being that guy.
But I also am someone that thinks having to mark a ball postion to just roll it over to check a mark, or even for moving into the new drop area is a bit retentive too. eye-balling it is fine IMO, especially if I trust myself to do it, I can't make the argument of "well, I'd do it right, but I don't trust others" - I don't like that argument much.