Count me in as a "nitpicking busybody", though I'd hardly equate dog walking offenses with the kind of damage a speeding driver in a residential neighborhood can cause.
Speeding in a subdivision is annoying to those who live in the subdivision -- it adds to the noise and makes it a pain to get out of the driveway in reverse -- but it's way more than that when you have young children, especially when they have disabilities as one of mine does.
My daughter is hard of hearing (not deaf, but requires hearing aids) and is exceptionally ADD. Last year, she was playing with a basketball in our driveway and it slipped out of her hands and into the street. Mom and I were on the porch when we saw her go after a basketball, we got up running and were screaming at her. She didn't notice us or the car as she emerged from behind a parked car into the street chasing her ball. The driver ran over the ball and narrowly missed hitting her (also narrowly missed the neighbor's big brick mailbox as he swerved). He didn't slow down, just swerved and continued on at a breakneck speed. The kids are no longer allowed to play in the front yard.
Now, sometimes residential roads are indistinguishable from main roads -- lane markers and such can make it easy to speed "by accident". This is not the case in my subdivision. We have a large marquee indicating the name of the subdivision and a posted speed limit (25 MPH) sign. It's all houses, tightly packed, except for an elementary school. Because of a light with poor timing that causes a back-up on the main road, our subdivision is used as a bypass during Rush Hour.
I set up an RPi connected camera to help me make the case for increased enforcement after my daughter was nearly hit by a speeding driver. Two-thirds of the cars appear to be going well over 25 MPH and over half are going so fast it's obvious they're going 15 MPH over the speed limit.
I doubt anyone is in such a hurry that they're consciously choosing the safety of residents of my neighborhood over their 1/2-minute reduction in travel time to their destination, but their actions are just that. I'll be adding this feature to the software I use to track traffic in my neighborhood. I might even go so far as to shame the worst of the drivers (mostly 16-17 year-olds). I even toyed with the idea of setting up a sign that lights up a "Slow Down" message when a car is obviously speeding, but I'm betting that'd run afoul of local ordinances. Incidentally, I had tried to get a "Deaf Child/Disabled Child" sign put up, but I was told the township no longer does this and given the dubious excuse that "they provide a false sense of security" (no -- "they're expensive" or "we're tired of having to change them when the wording is decided to be 'politically-incorrect' every few months" is the problem -- they still put up "Pedestrian Crossing" and other related signs and they still maintain the existing ones when they get knocked over).