Had an after thought about the meter reader, when he was there in August on the 11th and then again on December 11th. Well I would think that he was reading water meters, here where I live they are read on 3 month intervals, I would surmise that after the 3 calls in August that he made, and felt that he didn't get the response that he expected, when he went back in December he decided to poke around. In this area they are not true county employees, but work for the county. With all of the homes in that area he would have been there for 3 days to read the meters and probably stopped there on the side of the road for a break or lunch, I see it a lot around here.
In my area from time to time I see mail men and other county people that seem to have just pulled over for their break.
Where Caylee was found would be a likely place for someone to pull over and take a break. Suburban Dr from Hope Spring DR is empty on the right (east) side all the way down till it stops at the woods and school. By empty I mean no houses just woods all the way down.