The Fred Meyer (Kroger) in my neighborhood has 4-5 armed and body armored security guards stationed at the entrance and exits. They ask to check your receipts at the exit and search all your bags.
Its actually illegal to force someone to stop since its not a private club like Costco, so you can just tell them no and keep walking. Thats not well known though so you have stormtroopers checking old ladies papers and searching all their belongings.
Oregon allows off duty officers to moonlight as armed guards so a lot of them are cops from various departments. During the 2020 protests there were a few Federal Protective Service agents patrolling the store.
That’s just the nature of peer-to-peer file sharing. When you download a torrent from a large site your client broadcasts your IP to any of the available seeders. Seeders are just anyone who downloaded the torrent before you, and you generally download from many seeders for one torrent.
Using a VPN or seedbox masks your IP. The actual torrent itself isn’t “traceable” unless you continue to seed after its compleled downloading.