Muzikman
ROCKIN!
I agree with you, and I believe they should search Blanchard park with a fine toothed comb for precisely this reason.
This area was searched several times by TES teams. Plus Blanchard Trail, which runs from the park to Goldenrod Rd where the car was abandoned.
Of course, the search is only as good as the searchers, and with volunteers they may or may not have sharp eyes. But since it was done more than once, with different teams each time, I would say it has been combed over very well.