Rude or not

I'm 38weeks pregnant I was walking out of Walmart when a man who worked there stopped and asked me for a receipt I told him I didn't have one cause I didn't buy anything, a little confused. He then said the receipt for the volley ball under my shirt. I kinda laughed it off and walked away. But I was feeling a little insecure about how big I am and everyone stops and stares at me like they've never seen a pregnant person. Idk some days I just want to hide until this baby comes out. Do you think it was a rude comment?