Relax buddy, if its just inside the trunk its fixable...plus the spatter is easily touched up afterwards.

Did you prime the trunk first? I used the epoxy primer to seal it as I find other primers too porous. I would just take off the spatter in the affected areas light grind..(it comes off pretty easily) and POR it, then respatter and SEAL with a goodly coat of clear. I had one spot that did that on mine on the right side seam in the area of your first picture. I took a wire wheel, ground it down in disgust as well, POR'd it over the primer and respattered just that area. Has not come back in over a year and I live in a humid climate! One could even go further and put a dessicant in the trunk.....I keep a cooler in there on hot days sometimes if visiting with a few cold pops in it...so the humidity can be hi....

All will be well grasshoppa,