For the above issue, I decided to remove the rear bumper today...
I noticed a couple things while I was under there. First, the right side radar box thing was bent downward. Fixed it with a little elbow grease:
Next, on the left side of the bumper cover, it seems to collect dirt and moisture inside. It shouldn’t be a problem since it’s all plastic in there:
And then there was the right side on the vehicle itself. It looks like rust stains so I’ll be keeping an eye on this one:
And I thought it was strange they used this plastic wire harness connector thingy to hold a wire harness to a screw inside the bumper. Not a problem or anything just looked out of place to me:
And finally, on a good note, this is the first time I’ve removed the bumper cover in about 10 months. I checked the torque on the hitch after I installed it from underneath and it was good then. It’s still good now, as expected.