No one would think anything about it. People scan labels for nutrition information all the time. I also did grocery delivers for a bit and would take pictures of the options on the shelf if the one the customer ordered was out of stock.- A can of soup and a slice or a loaf of bread.
I never buy canned soup. Too much salt and ultra processed. I wonder if its okay if I make a tomato soup and poor it in the empty tomato can after I made my own.
Otherwise I have to make myself ridiculous in the supermarket.