You all do know this stuff can be ordered through Walmart.com for free delivery to your local store, don't you? I ordered around 30 gal a couple of years ago (we have an extra tank on the Bus for Alaska trips) and it came through just fine. They did look at me a bit funny when I tested the containers. We had a few instances where slime balls bought containers, used the DEF and refilled the containers with water before they returned them to the stores for refunds. The seals on the WM brand containers are somewhat problematical, so I just tested them. Trust but verify.
2013 Tiffin Allegro Bus 43QGP
2011 Chevy Silverado 1500 Toad