this post was submitted on 20 Aug 2026
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Just don't forget to leave any electronic devices at home.
You could just wrap your phone in tinfoil, but there is an exact way that you have to do it. If you have ever been somewhere remote without signal, your phone will nuke it's battery trying to find signal by increasing the antenna's power. You have to put it in airplane mode to save your battery. Not matter what you do, even turning your phone off, the antenna will be live sending some signal. The takeaway is that even with a hacky Faraday cage, your phone will try it's hardest to phone home and could win with a tiny tear in the foil.
Honestly just easier to leave it at home. Or in your vehicle, assuming you didn't pass by the camera on your way, and leave it sufficiently far enough away. I doubt they can read RFID from cards yet, even at a close enough distance to cut the pole down, but might want to leave those at home as well.
Leaving the electronics at home also seems easier to explain in case you're stopped, compared to trying to explain why you have a phone wrapped in tinfoil in your pocket.
Why is it so hard for people to just leave their electronics at home?
They've become so attached that they get anxious without them.
"Oh man, I gotta park far away so it doesn't read my plates and info from the car... Well I've gotta bring my Galaxy watch so it counts all the extra steps I'll be taking."
They may well get lost outside without them.