I just looked thru all the listings for the auction and aside from a '29 Roadster Pickup running on Friday, I didn't see any other A's. Several nice Lincolns & Packards from the same era however.
I'd agree with the premise that someone took a firetruck and made a "tanker"
There's no place for the product pails, nor a way to fill them. No drag chain either.
And what's with those "boxes"?