Dirt trapped under shoddy clear coat

[SeeMeGovan]

Alright, so today I finally got around to removing my out-of-place-looking door trim. I only did it on one side of the car because it got dark. Long story short, it appears the PO put a few layers of clear coat on the rear passenger side door (for who knows what reason) with the door trim IN PLACE and actually trapped a layer of dirt under the MF'in clear coat outlining the door trim. Wow.

Ok so I peeled the trim off cold with floss and a majority of the adhesive actually peeled right off with the trim. Whatever was left over came off quite easily. The caked-on 6-year-old dirt, however, was a PITA to clean off as I had to hose it down with goo gone and painstakingly scratch it off with my fingernail. It felt like I was cleaning a 747 with a toothbrush.

Anyway, after I finished the front passenger door, it looked brand new. No outline whatsoever and the silver paint underneath looks the same color as the rest of the door. Awesome. I then move onto the rear passenger door and most of the dirt comes off, but there's a very hazy layer that simply WILL NOT scratch or wipe off. I can feel a definitive step-down from the rest of the door into the area the trim was covering and so I'm pretty sure the PO sprayed clear coat on this door and trapped dirt in there. I'm already ticked off at the PO for a dozen other things but this is fucking ridiculous.

The first 2 pics are before I cleaned it, just to establish what I started with. The 3rd and 4th pics are after I scrubbed all I could scrub off and I found the edge of overlapping clear coats. You can just barely make out the edge of the 2nd clear coat in these pics. It's a squiggly line just above my fingernail.

So what the heck should I do? Wet sand and buff just this area? Will the different thickness of clear coat matter?

UPDATE 6/5/13: So I took off the other side today and it's a similar story except flipped. The left rear came off and cleaned up without a hitch but the left front is gonna need work. It doesn't look like there's any erroneous clear coats on this side but it feels like the dirt sitting on the paint started to eat the top coat because it's quite rough where the dirt was sitting. And no this isn't from me scratching it; it's a very uniform texture and I basically soaked the heavy dirt in Goo Gone and hosed it off.

UPDATE 6/7/13: My clay bar kit came it today. I washed and rinsed all 4 doors and went at them with the clay bar and lube. The FR and RL look almost perfect after the clay bar but the FL and RR (the bad ones) hardly changed at all... And when I was clay barring the shitty doors, some little flakes of silver paint came off onto the clay. This confirms my suspicion that the original clear coat has been eaten through in some places on these doors. Both bad doors seem to have a combination of a 2nd clear coat and the original being eaten through.

This is so fucked. At this point I'm considering just putting the damn things back on but they're what caused all this in the first place. If I waited another year, this could have all been rust.