Try it; it's interesting.
And here's my tale. I plugged in the address where I am vacationing and received a bright red message: 2--Car Dependent. Now there's no arguing with that. The nearest store is nearly 2 miles away; most other facilities of modern life are further. In the language of Walkscore: "Almost all errands require a car."
After trying this cyber experiment, I launched off for a more than 10 mile run, less than a mile of which was on an asphalt road. The balance was wooded hills and trails. It would be hard to imagine a better setting for that form of pedestrian activity.
Later I plugged my home address into Walkscore and got "98--Walker's Paradise". I know what they mean. There's hardly anything I can't get or do on foot in my San Francisco Mission neighborhood. Hardly anything except run, that is. I don't run on pavement -- too broken down for that. So at home I drive from my Walker's Paradise to find running room. Contradictions abound.
Meter fixes though probably won't do much for the times that I find myself driving around the Mission trying to find parking. I don't do this a lot; years of experience have made me very aware of where I can usually find a vacancy. But if I time a car trip wrongly and return in the early evening, I can count on an influx of community college students filling most of the street spots. That's after meter hours end at 6 pm. They'll leave later in the evening.
The other time I (and most everyone) has trouble is when we need to get our cars out of the path of the street sweepers, squeezing about 2/3 of the resident cars into 1/2 the spots. Are there technical answers to that problem, or is it simply a cost of urban life?