Shortage of rental cars. Huge line. No one explained the reason for delay. Still tried to upsell gas and insurance. Agents milling around because of lack of cars. No kindness for a three hour wait. Saw a lady sitting on the ground. Some one from Hertz brought her a chair. Avis did nothing. Even Express line was long. Avis could gave handed out water or chairs or at least some alternatices. Never again with Avis. Atlanta airport.