Yes, I think she would be very happy with the sight of so many of her friends and family gathering to celebrate her life.
I encountered that several times in the past, sometimes long after the smoker is gone. Seriously, smoking is a personal choice, fine, but can't you just wait 5 more minutes and smoke OUTSIDE?
Long ago in my secondary school those students would smoke in the restrooms. The restroom already stank, and that smoke made it 1000x worse. The prefects should have sent them to the principal's office for smoking!