This actually doesn't seem that far fetched. Ex-drivers who are angry and have plenty of time on their hands out at night picking the RFID tags out of stop sign

This actually doesn't seem that far fetched. Ex-drivers who are angry and have plenty of time on their hands out at night picking the RFID tags out of stop signs. Another scenario is more of a slow and steady war. I'd expect that autonomous vehicles will occasionally be alone and unoccupied, which makes them a tempting and defenseless target. You wouldn't even need to do any physical damage to disable them - just a little electrical tape over their sensors, or some chocks under their tires. Soon, the autonomous trucking cos have to employ some of the ex-truck drivers to go around re-enabling their vehicles. And of course, those ex-truck drivers are in cahoots with the disbalers. That could certainly drive down their savings on labor costs.