This question is for fellow locals.
I keep hearing that there is free parking at Stapleton Airport's old parking garage - shuttle to DIA. However, there is little to no information online about the following: How long can we leave a car there? Does anyone know? And how can it be free!? Nothing is free anymore. Also, does anyone know how frequently the shuttle to the airport comes by? I can't find that information either. With the cost of boarding the dog going up and up, it would be nice not paying ungodly amounts for parking the car at the airport!!