When the crew enters Ottawa, it is apparently 6 days before July 1st. They are seen skating on the canal and tubing down a snow covered hill. There is no way that the canal would be frozen and a hill would be covered in snow this time of year. This shows that the visit to Ottawa must have been during the winter and not during this so called road trip that the film makers make us believe they are on.
In the final scene of Rob lying drunk on the beach in Vancouver, he is issued a ticket by a police officer wearing an RCMP uniform. The City of Vancouver has its own police force, their officers who wear a different uniform. In addition, the officer is wearing a dress uniform, which would only be worn for ceremonial purposes, and not for day to day patrol duties.