easy to pick out & put down

I was shopping yesterday at a grocery store, this is where I do most of my grocery shopping. They have a competitors price match, so it has always made it easier for me to just shop one store (even with the wheelchair grocery shopping is a real effort). I have asked different assistant managers, at different times about any new stores that I want to price match, before I would use the ads & had been told "we will match them all, we would rather have all your business, that for you to go somewhere else". So I have used price matches from all the stores I might otherwise shop at for over a year. Yesterday (by myself in my wheelchair) one of the assistant managers, came up to me after I had finished my shopping, and asked if they could talk to me. I thinking that maybe I was the 100,000 customer or something - said "sure - did I win something?" To my total surprise I was informed ' I realize you use price matches to save money - but you are abusing the program and we wouldn't price match , but only' they named off a few selected stores - I said I could just as easily do my shopping in another town (beings we live in the country & it is the same distance one direction as the other & the there was some blah, blah, blah - 'I'll check with the manager & see if we'll price match so & so stores, I didn't realize you lived out there'. I was called later in the day & given a specific list of stores I could now price match. But the whole thing makes me wonder if they didn't know me well, by the fact I am in a wheelchair, would anyone have ever said anything, I know other people price match from the same store I have, but I do try to minimize my trips to town so when I go I may have more price matches at one time than someone how lives in town or works & is in town - thus makes more frequent trips so they aren't noticed as much. This is just another put down of this marginal person in society.