I need to be in Colorado Springs in late August. If I finish work at 4pm near the AFA (National Academy Blvd and I-25), would I have enough time to drive to COS, return the car, and make a 5:20pm flight? COS seems like a small enough and easy-to-navigate airport.

(anyone else feel like this should be a kid's math problem? At 4pm, Bob starts driving east to the airport at 60 mph. A train heads west at 45mph...)