has caused my exchange to receive a temporary restraining order and lock my account.
What exchange locked your account? Was it Coinbase?
Locking account and doing investigation for 0.02 BTC is crazy, but any centralized exchange can lock your account or freeze your funds, so I would be very careful using them and sending kyc verification documents.
You can always provide history of your transactions showing you are not directly connected with this scam, and asking for lawyers professional opinion might be a good idea.