you are interested in how it was done? as was said in probably 30 posts, he used a car, a bike or on foot if it was possible to do so. did he have help, it's possible, but what's the big mystery for you GK?
He's talking about the details of how he did it for specific races where road closures, etc. would have made it very difficult to get from place to place. Of course he used a car or a bike, but for some races it still would not have been easy.
2008 Brooksie Way is an example where there would have been no way to know they were going to have a half-way mat since it was the first year for the event. And no way to know there would not be mats in other places. Did he drive the entire course that morning looking to see where they were setting up? There is a long stretch of trail in the course. Did he bike that to see if there were mats? The half-way mat was actually on one of those trails in a wooded area so he must have biked it or had some other info that there was going to be a mat there.
I'm sure details like that are what GK is talking about.