Think about what a ridiculous statement that is.......then THINK about what a "real" grandfather or grandmother would do if they KNEW where the baby was.
If that were MY granddaughter, come hell or high water, I would be at that "persons" door with guns blazing..........The police could help me or NOT, it wouldn't matter at all.
I don't know what they do in Florida, but in my state the ENTIRE family would have been there within minutes of having the information. We would NOT be "watching" them unless it was to take them out one by one.