Did something similar on our last day a number of years back. Stayed off property and slept in on our last day, at breakfast told the now wife I would treat of she wanted to do the Richard Petty ride along, we had a late flight and due to a long weekend there was no way we could get on an earlier flight. When we got there they were putting the school cars on the track and asked if we would mind coming back in a bit and that they would put us in the front of the line if there were a lot of people already in line when we got back. With sometime to kill we drove over to the CR, I told the parking attendent that I had never been in the CR and would love to look around. He said not problem and gave us a 3hr parking pass. We toured the CR, went up to the Cali Grill which was not open as it was lunch time but we were able to get out on the roof. That was neat if you have never done it, great views. After the CR we had time to kill and took the monorail to the Poly and the the GF and walked around each place. We had fun checking out the resorts that after Petty we drove over to the WL too.