Evil, Evil, there big and they do bite. (one step below roaches)
I'd personally bomb it when you get a chance, make sure EVERYTHING is OFF. No flames, pilots, or power. One spark could go boom.  There is a warning on the can, not to use it under so many square feet because it's very flamable. (ymmv, dangerous, etc.)
I've bombed several mobile homes using them, to the extreame, and they do work...just take precautions and air it out afterward. Some times you might have a lingering oder, where a frabreze or another deoderizer is needed.  Remove all food or seal it up well.