Steve, just to note, CesarRunning dug up a 6+ year old topic. Since that time, I contacted officials a few times until a few officials agreed that fines of up to $100 per violation should in fact be assessed. In addition, a large fenced in off leash area was added to the park. I also moved away from where this was happening so, to be honest, I don't run there any more. However, things were dramatically improving with the combination of the off leash area and the assessment of fines. Interestingly, as I move farther out into the country, the dogs are kept under better control. I always thought it would be the other way around with the threat of cars, etc., in more urbanized settings.
As with you, I am always very impressed with well trained dogs that respond to voice command consistently. Unfortunately, they are rare.