Typical "Not in my Backyard" mentality. I empathize for the elderly couple but the desire to conserve or to preserve something as dynamic and fluid as culture (and the outgrowth of it) is simply nonpractical and to some elitist. A neighborhood is going to change between 1949 and now, they should be thankful that it's only noisy cyclists they have to deal with and not drug dealers, prostitutes and gang bangers. Hey! Maybe they should close down the track so that all the kids that are currently racing can become drug dealers, prostitutes and gang bangers and then they can come back to the neighborhood so that the residents can have a real reason to complain.
When I first move to ABQ I lived in an area near a park where every Saturday and Sunday morning I would be woken up by the sounds of kids playing soccer. At first I was kind of bent. But I quickly realized waking up to the sounds of kids laughing and having a good time was thousands of time better than waking up to much more serious sounds like gun fire and fighting.