I hate to have to say this @Mikuhl, but you may have skated on to very, very thin ice. I once worked with a TM who hacked in to the old PDAs and did just a little mischievous thing. He was gone from Target in 2 days after the event. I hope nothing comes of this for you.Wait why did that work oops.
To clarify, Target does not have a bug bounty, if they want to know how I did it they can ask me.
Target would only fire on ground of information security or taking advantage of inventory like price change. Sending a notification would be a surprise look and be fired if they did it on the clock since it’s loafing.