At least, I think so. I completed Australia, Suburbia, New Orleans and then made it onto Skatopia – the final level. Completed the usual “starter” goals, then the “tag team” irritating goals, and then moved on to the Pro goals (or, since I only had the one pro, the “Tony Hawk Goals”.
After doing a few of them, I got a “text message” from Tony to say “Well done! We won the tour!” or something to that effect, and that was it. No credits, and I could carry on skating (although there’s nothing to do). I can only assume that’s Story Mode over and done with. Probably. Hurrah?