Just my usual comment about terminology.
We play into the government's hands when we use the government's terminology and call these things checkpoints.
They're not checkpoints. They're roadblocks. Try running one sometime and see what happens.
The word checkpoint is a government term coined to make these things seem innocuous and non-invasive.
These things were always roadblocks and always will be roadblocks.
If we call them what they are, we won't be playing into the government's hands.