If OP is in the US, it's likely that 'scavenging' parts is not allowed at all. Dumb rule, but PCs are usually depreciated assets, taxed as having no value, and destroyed. They can't be donated or given away under any official policy without running the risk of a taxation issue.

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Usually the situation is that they're "left" somewhere that everyone knows about, and whatever doesn't walk off while the corporate back is turned gets recycled. I'm guessing OP wanted to get the jump on the scavengers by grabbing something good, and got burned. Policy as written is "nobody can have this stuff, under any circumstances" even though the de facto situ is that people can grab what they want as long as they're lowkey about it.

Given her reaction, consider that she may not agree consent was established before you drunkenly had sex.

Maybe have a talk with her that isn't about you, you might discover that the night did not go for her the way you think it did. Just saying.