Fan continues to run on 2009 Volkswagen Jetta

Is is okay for the fan to continue running after the engine has been shut off? This has happened twice.

2 answers
Yes, this is a normal occurrence on most vehicles. If it continues for more than 5 minutes, or drains than battery to where the engine wont start, then there's a problem.
Yes...normal if less than 10 minutes. Our Jetta fan did not stop running and drained the battery. Had to replace entire fan assembly but warranty covered it.