It's an interesting idea, but the town has only 9,000 people. I wonder how this operation would work in a larger setting, or perhaps more importantly, how it is

It's an interesting idea, but the town has only 9,000 people. I wonder how this operation would work in a larger setting, or perhaps more importantly, how it is safeguarded from abuse. Also curious if there is an app for that... Edit: on second thought, abuse might really be a non-issue, since the limit for abuse isn't worse than what they had to deal with originally and text message can be tracked with some ease.