Nobody spouting this nonsense has ever tried it, so we can conclude that this individual is as self-evidently ignorant as the rest of the gun prohibitionists. Gotta talk to my grocer, though. A battle-pack or two of fresh ammo next to the tater tots would make my Saturday pilgrimage a one-stop-shopping experience.
In the olden days before 1968 you could buy guns at hardware stores, gas stations, grocery stores, clothing stores, sporting goods stores, flea markets, order by mail, shipped by railroad. Cash and carry, no paperwork.
But back then America was still a FREE COUNTRY!
Last time I saw guns in a 1980s grocery store was in Tulsa, Ok. Saggs-Albertsons. BATF Paperwork still required.