It was a different kind of police chase in Arizona as cops pursued two white pups on a highway. "We got a call from a concerned motorist of two dogs running on the freeway," officials said. One dog was caught on the highway, but the other darted into a mobile home park. They were caught and taken to an animal shelter. If their owners aren't found, the pups will be put up for adoption, ideally going to a home with a good fence.