I hate it also. Last week I was in the same situation the UPS didnt even ring the bell. My package was almost returned because of him. Had to report him.
If you want to have a program help you buy items, let it buy the items. Also by the time you get the alert and go to the shop, the best items have already been bought. The only thing a restock allerter is good for is to tell you when you've missed a restock.
You have autoplayers for just about everything. I'd like to see one for Sewage Surfer. Also why isn't there one for Sakhmet Solitaire? The one I use for GM is a very simple player that only makes scoring moves which I think is the fastest np:time ratio.
Which is why I would like a multishop restock alerter, so I know when i missed a restock and am able to move on to the next shop.