Disconnect the power completely. Insert a 1/4-inch hex wrench (Allen wrench) into the socket at the bottom center of the unit. Follow the unjamming guide from The Home Depot by turning the wrench back and forth until the motor moves freely.
The disposal is not a trash can. Follow these rules to avoid next week’s emergency: how to clear garbage disposal
Most disposals come with a self-service feature for jams. Disconnect the power completely