Incline Calibration?
 

After using the treadmill today, I accidentally pulled my key out while the incline was going back down to 0. When I put the key back in, it automatically started an incline calibration. When it started, I was on it, but then got off and let it finish what it was doing. Doe's anyone know if any harm has been done? Should I be worried? My treadmill is a Nordictrak A2105 if that makes a difference. HELP!