I'm having the fuel in oil smell now. The oil level looks ok so I'll keep an eye on it for the trip home. Johnny O suggested oil anylisis, which might not be a bad idea. I wasn't looking to change the oil this soon but it would be nice to have an independent lab oil analysis results to show if I need to take the truck to the dealer for them to take a look.
The truck is still mechanically stock, so if there is an issue, warranty coverage shouldn't be a problem. I'll have about 1,100 miles and about 23 hours of driving to get home to see what happens. I haven't done anything about getting a catch can, so it is definitely not the cause if something is up.