The most concerning thing to me is that "tower dumps" are routine enough to have list pricing established. Any judge who would authorize that, in the absence of a reasonable scheme to protect those other than the intended target, has a different understanding of the Constitution than I do.

Presumably a tower dump is mainly to target the home/business premises of a target who routinely uses multiple phones (throwaway burners, etc.). That is maybe justifiable, but catching other people (who may or may not be related to the target) merely for network proximity is pretty unreasonable. I could totally see a fishing expedition where a crack spot is targeted.