>There's no legitimate purpose in bringing any of those to a high-profile political event.
I've carried a flipper zero with me to use as a copy of my key when I misplaced my original.
"There is no legitimate purpose in misplacing one's original keys."
What key?
All modern automotive and smart apartment keys can't be cloned that way. You can't do simple replay attacks.
Are you talking about some cheap office RFID badge or something?
Because if you have any important keys for things you own that can be cloned with a Flipper, you should be upgrading them to prevent that.