comprehension

I was recently in a store, my items were being checked out and I was putting the already-bagged purchases into my cart. From the store loudspeaker/intercom I hear, “Whllrreerah weegtoe hruna…” and so forth. At least, that’s what it sounded like to me. I had no idea what was going on. The cashier, however, seemed anxious and was hurrying with checking me out. Other customers were quickly and calmly heading to the exits.