Aspen will be the hardest only because everything is kind of compact. Grand Junction and Colorado Springs should not be a problem, lots of big wide open parking lots in those locations.
If you have a very set schedule, I would encourage you to make reservations for your camp spots if at all possible instead of relying on finding free camping or first come first serve. Colorado is very crowded in the summer even during normal years, and many of the campgrounds fill up very quickly. You can reserve at State Parks 6 months in advance. This year, even the First Come First Serve spots at the more popular locations are full on weekdays.