This is becoming a big problem in both the high and low rent areas of most communities these days. Several years ago on Superbowl Sunday we went to a friends house to watch the game. When we arrived home that evening we found that someone had broken into our house and cleaned it out. All of the closets in the house were trashed, as well as the dresser drawers. The heart monitor on the exercise bike was also gone. The food in the freezer and fridge were also taken.
My German Shepherd was brutally beaten, and then tossed into a spare bedroom. The burglar was eventually apprehended and is now doing 18 years in prison (He burglarized 63 houses in our town).
I now have 2 German Shepherds, and all of the doors have high-security locks on them. The gate to the backyard also has a high-security lock, and when I am not at home the yard, and my collection of Weber grills are protected by one of the Shepherds. The other one has the run of the house.
In your situation I would probably tough it out while the WSM is going, and after the food is cooked I would catch a few winks.