By the time we got done with all the paperwork we could have been searching for two-three days. It takes too much work for too little gain to ping cell phones that way - agencies trying to wrestle information out of cell phone companies is too difficult. We expend our energies and resources in ways best suited to actually finding the subject.

In an urban search, this sort of thing begins to make more sense. Perhaps someday the process of getting such info can be streamlined to take less time and approach being worthwhile.