I haven't even looked into it yet, in fear of finding out exactly the possibilities of damage, but before I went on a trip to Colorado last week I got my oil changed here.  $20.  Good price right?   Well when you consider the oil filer cap was not replaced after the oil change you might think otherwise.  \nAnyway, that's my story.  I don't even think the guys apologized when I went in today to show them the situation.  There was oil everywhere on the inside under the hood but my real fear is the damage which could have been done internally.