anyone else hear that noise when they turn the engine off (screech)

What is your question?

After driving 1/4 mile or more when I turn the key off it sounds like something is still spinning it almost sounds like gears of some sort,not like a squeaky belt more like a screeching noise it's a lease and it only happens when I turn the car off so I don't feel like a safety issue when I took it in for service (oil change) I don't think they test drove it they were very busy so I think they said it didn't do it When I pulled up home and turned the car off sure enough about a 20 second screech