Alright, so about a month ago I dun did the swap, and they've been working famously. Just enough time to get them broken in and clamping like they should.
Then last night on my way home from the grocery store, after braking at a corner (thankfully just down the road from my house), my driver's side caliper came off with some initial grinding and a nice big THUD. I had a friend with me so I limped the car home while he watched the caliper to make sure that it didn't jam up or anything while it sat on the bottom of the wheel. To lighten the mood I rolled all the windows down, put my hazards on and blasted Low Rider while creeping along at 2 mph to confuse any innocent passersby. Great success!
Anyways, I just got my car in the garage today and I'm just about to go out and look at it to see what happened. Earlier in the day I had slush buildup in both front wheels causing massive vibrations, which I had to pull over to clean out both on my way to AND from work. F*****g Minnesota weather... I'm not sure if this had anything to do with it, but it was the only thing out of the ordinary that had occurred beforehand. I'll update with more information as it becomes available.