Yeah, I saw that section on Wikipedia also. But I believe I've found a link indicating that level 3 is being used for consumer purchases in at least some individual stores.
If you look through Visa's supplier locator at https://www.visa.com/supplierlocator/ you can search for a business (or category of business) at a particular address or zip code. It will tell you the MCC (category) and appears to also show the data level reported to Visa.
I looked up Safeway grocery stores near Seattle. If you take a look at the one at 14444 124th Ave NE, Kirkland WA 98034 the data level is 'Fleet, Level III Line Item, Level III Summary'. I take this to mean that anyone using a Visa card at that particular Safeway will have their line item receipt sent to Visa. I would be surprised if the other credit card processors don't have setups like this as well.
If you look through Visa's supplier locator at https://www.visa.com/supplierlocator/ you can search for a business (or category of business) at a particular address or zip code. It will tell you the MCC (category) and appears to also show the data level reported to Visa.
I looked up Safeway grocery stores near Seattle. If you take a look at the one at 14444 124th Ave NE, Kirkland WA 98034 the data level is 'Fleet, Level III Line Item, Level III Summary'. I take this to mean that anyone using a Visa card at that particular Safeway will have their line item receipt sent to Visa. I would be surprised if the other credit card processors don't have setups like this as well.