Thanks for the feedback Ron. I'll run to AutoZone and pick up some clay bar tomorrow and get on it. If it doesn't work, then I'm going to have to assume it's clear coat peeling issues.
- what's weird is that my car was parked there overnight only. It's strange that only my car got 'hit' if your theory is correct. My parents' minivan is parked there almost M-F every week with no issues. And also, why would it only be on the passenger rear fender? If it does shoot up like you say, wouldn't it hit my roof, trunk or rear bumper first? Seems strange that it would only be on the fender.
I've taken a pic of the parking spot and also the supposed mulch if this is what you think it is. The thing is, I don't usually park as close to the back as possible. I usually leave about 3-4 feet of space.