Relax - everything is fixable and that doesn't look that bad. I used the PP paint over epoxy primer and haven't had any problems. Like someone else said earlier, other primers are too porous. I'm pretty sure the PP paint is a combination of water and solvent base. The latter is what keeps the dried product from being water soluble, but not necessarily impervious to water.
Buy a trunk mat and enjoy the car over the summer. You can tackle this over the winter. If it makes you feel better, I've had my share of setbacks. An idiot at a car show put a big scratch in my car with a 55 gal drum he was moving, my reverse/fifth went out a month ago because of a poorly manufactured part in the transmission, my aluminum radiator has a small crack and the rear main seal leaks way too much. None of that stops me from driving the car, showing it or otherwise enjoying it.