another good lesson here, lucky, is that your wife should get in the habit of checking her pack to make sure she's packed her shoes. If you had looked before you left the house, your weekend wouldn't have been ruined.
Sucks that someone stole your shit, but there is always a personal lesson to be learned from any misfortune.
If you truly believe in Karma, remember it goes both ways -- this shitty thing happened to YOU for a reason, karma allows for no victims.