That is awesome. Bringing a spare dish from home. I know that would not be acceptable to the “powers that be” here though. Still I hope your solution helps some of the others with this issue.
What might be promising is working somehow with whatever cell tower has been moved up there. I can’t guarantee that all cell phones will work or that the elderly guest will understand how to DO their own hot spots. But if we could create a hot spot somehow...
In case the powers that be are alarmed, they should know that there is no violation of the agreement with directv. Tailgating folks do this all the time . I even met with the local satellite guys asking what to do and this is what they suggested and also taught me how to align the dish. My family is with me so i do not have directv in use at multiple locations at the same time - multiple locations being used at the same time is a violation of the agreeement.