I am struggling to think of a way in which prohibiting the sharing of such information could be made illegal. The checkpoints are publicly visible activities of

I am struggling to think of a way in which prohibiting the sharing of such information could be made illegal. The checkpoints are publicly visible activities of public employees. The right to photograph and video record police when acting in an official capacity is well established. If anything, noting their location seems less intrusive and more likely to represent a protected form of speech.