The paper may block the cabin air filter which is located on the passenger side of the cowl. You need to remove the plastic cowl on the passenger side to replace the cabin air filter every year. The filter gets clogged with debris and reduces HVAC performance noticeably. So buy a new cabin filter and follow the instructions in this thread and remove the paper and replace your cabin filter at the same time.
How To Replace Or Add A Cabin Filter - Taurus Car Club of America
I am told that the procedure for your generation 3 is the same as the generation 4.
Hope this helps.