So...after having the fuel pump recall knocked out at a local dealership in mid-October I started getting a very strong fuel odor in the cabin when the tank was fairly full. At first I thought they may have spilled a little gas while doing the work but after I noticed it a couple more times I decided to take the car back in, assuming the new fuel pump gasket didn't seat properly or something.
Initially the dealership said they saw no sign of any leaks and the gasket looked good. Today I got a call and they said they found a hairline crack in the bottom of the tank (no signs of impact damage) and they're going to replace the tank under warranty. Not sure if they did it while they were doing the fuel pump recall work or what.
Chalk up another trip to the shop for the SHO, the fifth one for fairly major repairs in roughly 24k miles, haha. Fortunately the dealership I'm dealing with now has great customer service and they give me nice loaners (2013 FX4 with EcoBoost, 2014 Fusion Titanium with EcoBoost, etc) when I bring my car in.