I wanted to try this first before posting. You can get a free one day DVD rental from Redbox. It is not an online service, they have self service kiosks through McDonalds and grocery stores. Click on the link below to get the promo code for a free rental and then check the locater for the closest kiosk (ours was Harris Teeter).
They have a FAQ for any common questions. I had to type in a credit card number when I picked up the movie but we returned it before 7:00 PM yesterday and weren't charged.