Almost four years ago, I innocently invited Leelelee and BearTerritory (not known by those names then!) to go wine-tasting with me on a Sunday afternoon up Summit Road. While we drove over Highway 17, BearTerritory politely asked if we minded making a slight detour to "find" something. I assumed she had left something somewhere in the past. Of course we complied, and eventually ended up staring at a pile of bricks, a large tree, and a dead end road. With every prodding question we asked her when her search began like, "Could it be in the tree?", she replied, "I guess so". Long story short, with no devices at all, we found what she was looking for, and the HOOK WAS SET! Within days...a premium membership was purchased, the cache was logged and years of enjoyment have ensued!
Thanks, BT, from both of us!
You can validate your puzzle solution with certitude.