To recover the $67, you would file a lawsuit in the small claims court. If you win, you will also be able to recover your costs (filing fee and process server fee). Unfortunately, you are in quite a dilemma because a civil lawsuit won't achieve the level of justice that you seek, and the amount in controversy is likely too small for the District Attorney's office to prosecute.
Frank W. Chen has been licensed to practice law in California since 1988. The information presented here is general in nature and is not intended, nor should be construed, as legal advice for a particular case. This Avvo.com posting does not create any attorney-client relationship with the author. For specific advice about your particular situation, please consult with your own attorney.
Sue him in Small Claims Court.
Please note that this answer does not constitute legal advice, and should not be relied on, as each situation is fact specific, and it is not possible to evaluate a legal problem without a comprehensive consultation and review of all the facts and court pleadings filed in the case. This answer does not create an attorney-client relationship.
What is somewhat interesting in your post is that by your account, this incident is the second time that this person cheated you in a transaction, yet you went back to him. The first incident should have taught you to not do business with him.