> It was actually a problem with the plug in the garage, it must have gone off a few minutes after I plugged it in. Now what? Wait 16 more hours?

So what, that's something you find out once that your electric installation is shoddy enough to most likely be a fire risk (because the charger plug has a thermal protection built in!), fix it and then you won't have that problem again. And as the Leaf should have 150 miles worth of range, you still should have way more than enough range on the battery to do two days worth of commute even if you suddenly find out the trickle charge didn't work.

50 miles each way...150 miles range turned into 10 miles left. So no.