Agreed. Personally, I think a planned/opportunistic abduction may have occurred. Summer and H stayed in the car at the grocery store. The grocery store is in a pretty busy area with a huge Eastman Chemical complex right next door. Looks like a landfill is right there as well. My point is, a lot of traffic is popping by that
grocery store to get milk on the way home.
Even though we don't have any clear timeline on how long they were actually in the store it was at least half an hour. Plenty of time for a preferential predator to see her in the back seat. A preferential predator would not be able to resist stalking the target. The hypothetical preferential predator follows them home and begins staking out the area. Looking for access points, discovering that Simpson Road connects back to Beech Creek Road even though the map says it doesn't, etc. This is also where an unknown vehicle would most likely have been noticed.
So the hypothetical preferential predator is creeping around Ben Hill Rd in a red truck and spots his target chasing a puppy (or whatever) down the dog trail. He was laying the groundwork to abduct and his target just ran right to him.
Her having wandered into the woods and gotten lost is statistically more likely. Search dogs aren't infallible, but it just bothers me that they lost her scent at the road. If she had continued on foot, they should have been able to pick up her scent again on the other side of the road or going up the driveway. Just a very coincidental place to lose a scent completely.