Its probably just the o ring on the oil filter, he probably doubled up on the gasket on accident. The O ring tends to stick to the filter housing when taking off the filter, then he put on another filter with an o ring installed on that which is causing a leak. Who knows though.

 

Just heard back from the shop, it is the problem with oil cooler. With it being replaced, the shop is charging around 240 for labor. Does that sounds about right?