I guess that would catch the casual scofflaw who hadn't thought things through, but it's not like it's terribly difficult to just lookup a couple stores in the vicinity of where you actually want to go. combine that with the fact that you're apparently allowed to visit friends/family who "need assistance" as well as walk around for exercise, a halfway clever individual could have an excuse to go pretty much wherever they want. of course, there aren't many places other than the grocery store that are actually open.

also, how does the conversation begin in the first place? do they pull you over under suspicion that you're not on your way to a grocery store, gas station, or friend/relative's house?

I have to think that the government/police have very little interest in harsh and perfect enforcement. As long as most people mostly follow the order -- and likely most will, because they're not all engineers who like looking for loopholes in everything ;) -- it will help. Better is better, but pretty good is better than nothing.

The order also allows going for walks as long as you're not with someone you aren't housed with, so the misdemeanor part is likely to be about gathering, not travelling.

Or it’s a test to see how far they can abuse your civil liberties, like detaining you indefinitely.