She is going to be 100 next month. She is on oxygen and has congestive heart failure. Recently her mind is confused with the past and I have to remind her who people are. Just now 8pm she got up from bed, I asked where she was going. Said she was going to work. I told her she was retired and she said if I was sure she would go back to bed. Two days ago she was walking down the driveway. I live in the country and have a long driveway. Can those GPS trackers be cut off? I thought about that but I bet she would try to remove it. I ordered door alarms and driveway alarm. I called a locksmith to have a key deadbolt put on. He said they weren't legal. Any suggestions?