The little (bleep bleeepin bleepers)

keep coming back!!!!!!
thank-fully not in large amounts, but I killed 5 more under Harley's crate before bed last night.... URGH!
I found some in my livingroom on the weekend, needless to say my whole apartment got sterilized... again!!!!
I'm looking for a temporary fix, because I don't have a place to board Harley in order to have an exterminator in, we're only going to be living there until September 6th, So do pet stores sell some sort of pet safe bug bomb? BLAH this is soooo frustrating!