Imagine

[Scythe13]

I'm just saying imagine if, instead of causing car accidents themselves, they shot out other people, or their cars, then caused people to abandon their vehicles.

The expense to deal with such an issue would be HUGE!!!

The government would send in military troops and crazy stuff like that. The motorways would be packed with abandoned vehicles, which would have had their tyres slashed, or have been burned out by the terrorist group. It would even be possible without loss of life. Shoot out an engine to make the first few cars stop. Then shoot out windscreens so people knew they were being shot at. That would cause an instant roadblock that would take more than a couple of days to clear. Don't forget, the government in the area believe there is a gunman lurking around there. They're not going to send people into that area in a hurry.