Back it with several layers of aluminum foil to help shield against ultrasonic weapons.
Make sure your sign post can be used as a weapon.
Bring a bag containing bandanas soaking in 50% white vinegar for tear gas
Bring milk or other dairy for pepper spray.
Id recommend refusing to answer this shit.
I think the correct response is
"Am I being detained or am I free to go?"
Face it. Your blaming dirt farming peasants that John the bastard is going to crusade your lands.
There's literally nothing we can do about it besides die as well in most cases.
Meet your neighbors like you, and realistically express your concerns, and recommend organizing, coming up with a communication and rescue system.
It's much harder for brownshirts to drag your neighbors off if everyone is there with guns.