I imagine the two will co-exist, at least for a while, since they use different areas of the brain.
Your bus obsession seems to be a lot of data and patterns; chores have to do with details, planning, and physical effort.
Once you have perfected your procedures when it comes to chores, you may no longer be obsessed and simply add them to your routine. Or you may branch out into other areas of cleaning, such as house-cleaning or custodial work. I currently do custodial work; and it is rather well-suited to my detail-oriented Aspie brain.
Two summers ago, I became quite obsessed with my job as a painter (walls, not artistic painting). I was known as the best at doing detail work and cleaning, though most others were faster. However, I could not have stood that job, or any purely physical job, if I had not also been allowed to listen to books on tape--which fed my obsession with information of any sort, and with sci-fi/fantasy stories!
(I still use this strategy to tolerate my job as a custodian. I strongly suspect that this need to always have some sort of mental stimulation is a sign of some degree of ADHD, especially when combined with my deficits in executive function.)
So I had mental and physical obsessions; and they coexisted, equally strong. Perhaps yours will be this way as well.