Jim from Guiness World Records here. The Cambridge dictionary defines shopping as, "the activity of buying things from shops". Based on this, I have no other choice to disqualify your attempt which, although full of brazen effort with the cunning use of firearms and hostages, was not technically shopping as there was no buying action. You are welcome to try again in six months...or 9 years if your prison doesn't have a qualifying shop.
Gotta backhop around the store and trimp off the mobility scooter to jump over the aisles and get to the aisle you need, avoiding the unskippable cutscene of getting stuck behind someone who's abandoned their trolley in the middle of the aisle
Instructions unclear, speedrun ruined by RNG which put me directly behind a 98 year old lady at the till and subsequently had to endure an unskippable cutscene where she and the cashier are laughing about the things her new Pomeranians are doing.
Dude fucking dives into a store, grabs a pack of gum mid air, scans it as he's falling, drops his WiFi credit card close enough to the reader, transaction finishes before he hits the ground.
There are certain lightweight products which don't require weighting or putting them in the bagging area at all, like spices or bath sponges. These would be perfect for any% speedrun of Groceries since they don't ever require an employee to verify discrepancies