It seems two of my neighbors witnessed the incident. They were talking to each other just across the street. So I talked to the other neighbor and got a much different story. The first neighbor told me it was two Asians in an older silver Subaru hatchback. The second neighbor tells me it was two Mexicans in a newer silver hatchback that might have been a Suzuki? He also claimed to see them again later in another neighborhood driving up and down streets. He said he thought they were looking for junk or looking at houses for sale. He is an idiot though, because my house isn't for sale and it wasn't trash day. I think they were probably casing houses. Hopefully the mean mugging they got from the senile watch will deter them enough.