I don't disagree with that, which is why I advocate a system for law breaking that has nothing to do with compels. Otherwise, even with a good GM, it wouldn't necessarily be a matter of waiting till the PC runs out, but rather having the appropriate dramatic moment come up when the player happened to be out. Either way it's an unacceptable situation, but I feel that there being no risk associated with unrestrained combat magic to be unacceptable as well.
Except...
A weapon:8 evocation taking the form of a giant ball of fire comes flying at you when you're already scraped, bruised, and running on your last legs.
You manage to dodge the discipline roll down to a single shift, meaning you're about to take 9 stress.
Your minor, moderate, and severe consequences are already occupied, and have only 2 of your 4 physical stress boxes remaining.
You take the extreme consquence 'horrible burns', change one of your aspects to 'grotesque appearance', take one stress, and CONCEDE.
You'll survive, though, assuming you get medical attention in a reasonable amount of time, and no one takes the opportunity to just up and slit your throat.