Answer:
Yes. Joe can disaffirm the contract as he was drunk when he signed it.
Step-by-step explanation:
According to law, a person who enters into a contract while intoxicated (either by alcohol or drugs) can make void, the terms of that contract if the person can prove he/she was sufficiently intoxicated and was therefore impaired, at the time the contract was signed.
Therefore Joe can disaffirm the contract by arguing that he got really drunk on Friday night and as such, his decision making was affected when he signed the contract on Saturday morning.