I was in Tesco's. There was a notice on the door about the minute's silence and members of staff reminded us as we wandered around.
At the appointed time everyone in the store fell silent apart from a crying baby and 2 ignorant, fat, tattooed disrespectful females in the frozen foods aisle, who carried on their loud conversation. I moved a few steps and put my finger to my lips to give a hint, someone else did the same at the other end - all to no avail.
At the end of the silence there were some choice comments made (I just agreed with them).
No, is the answer to the O.P..