The team was forced to retire from a one-lap lead due to an overheating problem
The team will be saying goodbye to both the series in which it has had a tremendous amount of success as well as its Honda Performance Development P1 car.
Next up for Muscle Milk Pickett Racing will be the Grand Prix of Long Beach April 19th and 20th, where the duo of Graf and Luhr have won the past two seasons.
The German completed four timed laps with his fastest time coming on his third one around the 3.74-mile road course.
Muscle Milk Pickett Racing, who finished second in class in 2012 after a strong debut performance aboard their HPD prototype, will kick things off at Sebring International Raceway.
Klaus Graf, Lucas Luhr and Romain Dumas return for the final ALMS season. The championship team will begin winter testing this week at Sebring.
Muscle Milk AMR press release