Phillip, my educated wild guess is that most if not all DR companies/specialists have more than enough work to do to be bothered with "snooping" through a hard-drive. I might be wrong, however, let's see what others post.
No, it's unlikely that they'll be able to restore anything if it was encrypted with a TPM.
They would need to brute-force the key which takes a very long time. A GTX1080 can only do 860 passwords per second, which isn't particularly fast.