If your dog opted not to walk, then don't drag your pup. Maybe your dog is having a hard time to adjust in the new environment but believe me, your pup will surely could do it. Maybe not now, but soon ... That is the same thing that I did to my pet when we migrated. Before, we walk together at the park with the use of leash. But the moment we migrated, same concern happened. But it is natural reaction of dogs because they are inept to understand few things. And worst, my dog usually bark to the people that unfamiliar to my pup.