Just an update; I came home yesterday and there were considerably fewer beetles visible as it was cool and rainy. There were only a few on the screen door so I decided to open it and check for mail. As soon as I opened the door, a hundred or so beetles that had crawled inside the door jamb for warmth came tumbling down all over me and scattered around the foyer.

I freaked out and grabbed the vacuum cleaner and vacuumed them all up. Then I went to Walmart and bought a Shop Vac. I came home and vacuumed all of them I could see off the house. Today there's a bunch more that have crawled out of the cracks, so I'll be out vacuuming the house again.
I hate these nasty things.