Chasing the School Bus- Mission Impossible

At some point in my dream I went from being in a school bus to being behind it, on one of those folding, portable bikes, trying to keep up with it. The school bus was yellow and essentially looked the same as any other standard school bus but larger and wider to look more like a hummer, I think. It was night, in my dream, and I was on some interstate pumping bike to go faster but only managing to barely keep up within viewing distance of the back of the bus. Finally, it stopped and I approached it once again, whole whole time on the shoulder of the highway. Apparently there was a traffic jam due to birds being on the road.

The bus took an alternative route down a utility road. The driver was now a professor I had had while getting my MSW. She was not sure what to do. We were near a mansion and some were going inside. The dream completely changed gears then and became me having to tend to my dog who was to stay inside the mansion, alone, in my absence.