Repulsive.
I had my deck stolen at League four or five years ago. I was a Senior playing some Flygon/Manectric trash, but I had RH Claydols, RH Roseanne's, Flygon Lv.X, etc. in the deck, so it was worth good money. Found the kid that did it; he had my deckbox and half the deck with him next week, but it turned into a he-said-she-said situation. The kid's dad backed him up and said "oh, he has so many Pokémon cards lying all over his room, these are definitely his" and the League Leader was totally spineless, so he said there was nothing he could do.
Ended up just giving up on it. Stuff feels really bad, man, especially when it feels like people don't care because it's "just cardboard." I probably would have really gone off on the cop, but it's probably better that you didn't. Hope it works out for the best. At the very least, you can console yourself with the fact that the deck is going to lose most of its value when the Plasma EXs tin.