This is a great idea! I like Michael's side banner idea. We should think about how long is an appropriate amount of time before we start to kick into gear.
I guess the challenging part is the false positives, where members just forget to check in, or lose their phone signal - not a whole lot you can do about that. I think we'd need to reiterate that if this member "service" is used, it needs to be taken VEEEERY seriously. An alternate contact is a must IMO - that way if the member doesn't check in, there would be a way for us to contact someone else who could possibly let us know that the overlander is indeed fine.
I guess the challenging part is the false positives, where members just forget to check in, or lose their phone signal - not a whole lot you can do about that. I think we'd need to reiterate that if this member "service" is used, it needs to be taken VEEEERY seriously. An alternate contact is a must IMO - that way if the member doesn't check in, there would be a way for us to contact someone else who could possibly let us know that the overlander is indeed fine.