You're a ridiculous kind of guy, so I thought a ridiculous kind of approach would be good for the solution.
You'll need:
A kettle
A 700ml or 1 litre bottle of vodka
1/8th of grass -more is better, clearly
Cigarettes
Papers
Advised, but optional:
A couple of friends
Duct tape to completely seal offending bedroom
Swimming goggles
911 on speed-dial
A fire extinguisher
Alright. Here goes.
Seal up the offending room - close the doors, windows, etc. At this point, you can use duct tape to completely seal the room.
Make a few joints - you'll most likely not be able to make them later on. Have a few tokes and relax. Maybe put some music on.
Pour some vodka into the empty kettle. Plug kettle into wall and hit the on button.
Try to keep a naked flame going at all times to avoid the risk of explosion or fire - e.g. keep the joints going.
Continue exercise and repeat. You might feel the need to put your swimming goggles on fairly soon into the experience.
Add vodka into the kettle often and boil it off until there's none left. Keep toking.
When you run out of vodka to boil off and grass to smoke, you should be free of bugs. If you don't make it that far, hit the button you have 911 on speed-dial.