Timing cover oil leak?

How can you tell if the timing cover is leaking? Went out this weekend and when I got home to clean the truck I noticed the passenger side of the hood and fender was covered in oil. I spayed it off at the car wash and ran the truck for a bit but didn't see any oil leaking so I drove home about 15 min away. Got home and checked it again and the lower passenger side of the block, power steering pump, and most of the front of the engine were coated in a thin layer of oil. Did some searching and saw there was a TSB for the timing cover so im hoping since I only have 50k miles the dealer will take care of it

 

I let it idle at the carwash for a good bit but didnt see anything dripping or squirting out. Didnt try putting powder talc on it