Just because they're deaf doesn't mean they need to block the damn aisle. I don't know how they expected you to guess they couldn't hear you.

I'm torn between pitying you and being angry with you. People in grocery stores are so rude. I'm 9 months pregnant and was getting the last few things I need before my son gets here. Well the Target in my town made their aisles more narrow so I just barely fit through alone. Well some lady sat and just stared at me for a while and made me really uncomfortable and then just walked right up close to me, causing me to back away. She did this until I'd backed out of the aisle almost completely and then shoved me out of the way. Seriously? Who shoves a pregnant lady? On the other hand...you could have tried to tap her on the shoulder or backed out of the aisle and gone down the next one. There's always a way to maneuver around people. I do think it was rude of her to be glaring at you. If I were deaf, I'd understand that you probably assumed she heard you. But who knows? Maybe she was just having a bad day and took it out by glaring at you. She could have done worse.