In the process of stripping out a car right now. So far I have killed 8 brown recluse spiders and I am only halfway done. These things are very common here and we catch them on glue traps in the house. The exterminator sprays twice a year but admits that pesticide has little effect on them as they don't drag their body as they walk. Every once in a while I will go through my spare plywood stock and kill a dozen easily.
BTW the armadillos have made it as far north as St. Louis. I seen on 10 years ago and no one believed me. Recently though the local paper has shown pics of a few hit on the road so now nobody doubts my sighting.