If you are a member of AAA, get your maps through them. You can get trip ticks from your home to a general location near your retreat or family retreat that point out construction and other travel difficulties, in case you haven't been there in a while. Do not use exact addresses. Surely you can find your way from the Post Office or local hospital to your families' home without letting their address become public. I have a relative of a friend who plans to bug to her home. It dawned on him recently, if there were a storm coming from the south, he could encounter trouble since the exits and interchanges have been rerouted. She told him to get a trip tick and that solved the problem. He would have been two towns over and lost, since they mowed down his landmarks to make the new exit ramp.
Get to know where you are, what is around you, and how to move. Get a map.