Except people will argue your privacy rights are violated by having cameras .. at least in SF .. they'll also argue it's racist by showing stats that poor people pay more of a percent of their income and so it's harder on them and there are more poor people of color than not.

They're supposed to add a few speeding cameras next year except ....

https://www.sfmta.com/projects/speed-safety-cameras

See the steps. I suspect it will never actually make it to the final step before some group successfully prevents them from being put up