The dealer I work at charges $20 for that service (oil/filter/fluid-top-off/rotate). They ask their customers to bring them back here because they have a "engine for life" warranty that they tout... as long as we do the service; if the engine gets funked up-> they replace it for free.
Could be something like that.
Coal Country Cruise... YOU MISSED IT!!! Pics here: http://www.focusfanatics.com/forum/showthread.php?t=296590&page=2