Aside from you informing that person, I can't think of another way off the top of my head but I'll give it some thought. I do think that it could deter a poten

Aside from you informing that person, I can't think of another way off the top of my head but I'll give it some thought. I do think that it could deter a potential issue if you communicated the basis of the service in regard to GPS breadcrumb and the alert if you don't checkin. The Natalie Holloway case comes to mind.