Oops! They raised their prices! Batteries are now $28.50.
They have locations around the country, three in Atlanta. They'll send you emails to let you know if a particular make and model arrives at the yard. The nice thing about the one I go to is that they put all antique cars in one place and leave them there for a lot longer than the modern vehicles. The modern cars, on the other hand are organized by make and crushed after a specified time interval. They'll allow you to purchase the entire antique car whereas they will not permit that with modern cars.
I've never seen an AD truck there but you never know.
https://www.pullapart.com/auto-parts/used-parts-directory/car-battery/