I ended up removing it for the Sunday ride. It got tweaked pretty good. I didn't think there would be any way the tire would bend that thing but it sure did. I am going to bend it back into shape and then hack off the corners for clearance. I am going to cut my fender flares as well. I should have done that a long time ago.
I saw it (and heard it) while you were making that turn before the big hill. In addition to the bumper and flares, you may have been touching the rock rails/pinch seem area. Your tire is only an inch away or so when not flexed, so it may be worth taking a look at it or even the sawzall to it. You can remove the plastic end cap, cut the rail, then pop it back it. The pinch seem could also cut into your tire if the tire gets stuffed into it.