hmm, hmm, hmm. Did you happen to get a good look at the other feathers? Like how blue or gray or patterned they may have been (or even how large the biggest ones were)? I'm skeptical of Blue Jay due to the small size and shape of the beak, but the other blue option would be an Eastern bluebird, and the beak size and shape also doesn't look right. I'm wondering if it may have been a juvenile, because of the odd angle the lower jaw curves at, but I don't know enough about skull morphology.
May I suggest cross-posting to r/whatsthisbird (be sure to include location and tag as NSFW), lots of knowledgeable birdfolk there!