Maxi Canada complaint: Self Check Out/ plastic vegetable/ fruit bags

Good Day, I personally have 2 complaints. I have been shopping at this Maxi for several years now ever since it was built. This particular Saturday I presented myself to the Self Check Out which I have been using ever since the were installed, just to be told that I was not allowed to use these cashes. I politely asked Why Can’t I and for what reason” the cashier replied because I had more than 20 items in my cart. I asked her since when had this rule been implemented because I had never been turned away with a full cart before. She replied ‘Since Ever’. So, I proceeded into going to wait in a long line on a Saturday afternoon with only 2 Cashes open. I have to admit I later did see a sign above the Self Check Out cashes with this new rule which I’m assuming was recently installed. The owners must have a good reason for changing these rules yet, I’m hoping that they will open and have more cashes open. My second reason for writing is that there was not 1 plastic bag in the vegetable/fruit dept. So, personally everyone shopping including myself had corn/ tomatoes, peppers etc in their carts or carrying them in their hands not in bags. This is inappropriate and unacceptable. I hope something will be done. Thanks, Unhappy customer.