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In SF, I drove by a big road sign that said "DUI checkpoint ahead". It seemed like the SFPD was advertising it a few blocks in advance and it was easy enough t

In SF, I drove by a big road sign that said "DUI checkpoint ahead". It seemed like the SFPD was advertising it a few blocks in advance and it was easy enough to take another street to avoid it if you wanted to.

sajohn6 8y ago
Where I'm from (Midwest), they'll set up the same checkpoint signs and then have an alt checkpoint waiting after the most likely exit point.
- ams6110 8y ago
  To optimize, they should probably have the checkpoint only on the alternate route.