Looking at the area on google earth, that utility cut isn't really that close, unless there is a new cut on a different aerial photo I missed. The closest access to it is on RT 32, and I can't see anyone leaving their car along the side of a major highway on their way to commit 7 murders. Even being in the middle of nowhere, too great of a chance someone drove by and noticed it, then saw the news and called in a tip. Or, you come back to your car covered in blood spatter and a state trooper is running the tags.
The other access points that would make sense are either wide open or the terrain looks like it would be problematic to get a vehicle into. You're parked on the side of the road again.
I would suspect you could blend in a lot more by parking among the cars in the front yard at 4077. Who would notice a car parked by a bunch of other cars on a random country road?
If you drive up slowly, lights off, don't close the doors when you get out it would be unlikely you'd wake up anyone in the house. Especially if it were a Prius, but really anything with a properly functioning muffler would probably do the trick.