Just a couple notes here...
I have a family member who suffered from a Tramatic Brain Injury, due to a ruptured aorta and his brain being deprived of oxygen. It has made him extremely angry and depressed. He has also gained a huge amount of weight. It is a huge circle of issues that just feeds off itself. Since we know CD was hospitalized, his parents may have done this to get him help in dealing with issues from his four wheeler accident.
The property that is being searched has been owned by the current owners for more than 10 years. This property was an incredible investment if purchased any time in the last 40 years. I can only guess how many millions it is worth, based on Bucks County being some of the most expensive real estate on the East Coast, plus the actual location of this particular parcel. BUT, that does not mean the owners had the liquid assets to front cash bail immediately.
As a farmer, I would think the ground is leased out, as farming an area this large is not something you do for fun on a Saturday afternoon. Most amounts of acreage this size are farmed with large, modern pieces of equipment using GPS coordinates to get optimum yield out of the amount of ground. A good farmer will be out there checking his ground on a regular basis for a few reason- 1) to check for plant growth, 2) to check for weeds, 3) to make sure nothing nefarious is going on in their fields resulting in crop damage or loss of income, or even a "grow" operation of another type is going on.
Also, due to the nature of crop farming, you should be able to see any ground that had recently been disturbed. I would also think that since this ground looks like it is planted, it would help LE determine more quickly when something could be buried, due to disruption of the crop. My bet would be there is a farmer in the New Hope area who now has a more intimate relationship with LE than they ever imagined, as they could provide a very detailed account of the land and what they know about it.