@:-) The RFID embedded cards can be easily defeated by wrapping card(s) in aluminium foil. The Govt provides a protective sleeve for unauthorized reading protection but it is open to allow card so it is compromised on arrival.
The "health safety issue" for car occupants at border crossing and other checkpoints is that they are XRAYING the car and occupants which is NUTS!
But how can you stop them? They should AT LEAST let you get out!