I'm not in the US, but the amount of times I've upgraded my traffic status in the UK to 'road-using pedestrian'/'honorary cyclist' because the UK branches of the dawdle-squad and the standing-in-the-way-brigade are just dithering in the middle of the pavement because apparently they, unlike me, have nowhere to be more urgently than requires a constant speed of 0.000001 mph. The elderly, pushchair-operators, the disabled and the people with big heavy shit to carry get a pass because it's ultimately probably not their fault they're in that situation. Just [i]stopping[/i], however, because [i]ooh ding I got a text[/i] is not an acceptable reason to slow down the whole street, which absolutely [i]is[/i] the consequence in my rickety-ass part of the world; the pavements are basically only wide enough to accommodate two people abreast -provided they don't mind sharing personal space, neither has belongings, and neither has a BMI that might raise their dietician's eyebrow. Alternatively, try it in my metropolitan-ass other parts of the world (London and Amsterdam) where everybody is trying to get everywhere all the time and frankly the pavements aren't much wider.

I have no idea how that law is possibly enforceable, but if they're going to give it a go, I have a few other seemingly-unlikely laws that could really help, which I'd like to propose.

[list][*] People take tests to see whether they are efficient pedestrians. This does not disqualify people that pass the test from using pavements, but those who [i]do[/i] pass get issued cattleprods.
[*] Everybody is on roller-skates. Pushing is acceptable.
[*] Cars regulations are inverted so that they pump out as many toxic chemicals as possible, giving pedestrians a bit of extra encouragement to get to their destination more quickly.
[*] Moron-bumps are installed so that people who aren't looking where they're going trip and learn a valuable lesson. Ideally, these should be slow but increasingly-steep inclines so that pedestrians are encouraged to take a bit of a run-up, thereby increasing the speed of everybody's day.
[*] Jig-lanes, complete with red carpet, are installed onto every stretch of pavement globally, for my personal use. In this circumstance, I'd still actually like a cattleprod in order to discourage people from disobeying the system.[/list]

Note that many of these proposals would actually inconvenience me more than if dithery-ass mouth-breathers stopped being dithery-ass mouth-breathers and walked to where they were going at an acceptable pace without randomly swerving, failing to indicate, or abruptly stopping for no [i]good[/i] reason, yet, out of charity, I'm willing to compromise.