Witnesses reported that Brady Holder and Jennifer Engel were inside an Abilene club for more than 30 minutes when police contacted them inside.
An 8-year-old boy was inside the locked car when the officers arrived, and the temperature was 37 degrees.
Holder and Engel were charged with endangering a child.
Engel received three years probation for her charge.
Holder was in court on Wednesday, but was rescheduled to appear next month.