We also are shown that the pups can transform their vehicles back into their pup houses by barking the command "House!" when they're not at the Lookout.
Chase, Marshall, Zuma, and Rubble were the only ones who were at the Lookout and Skye and Rocky were still at the camp with Mayor Goodway.
The Pup Scout baseball hat and neckerchief worn by Rocky and Skye is similar in color and style (and may be based upon) the uniform worn by Wolf Cubs as members of the Boy Scouts of America. Mayor Goodway's uniform resembles the old style dress uniform of Female BSA leaders, of a light blue blouse with navy blue skirt.