Around here, bags of food for delivery are sealed up tighter than Ft. Knox (figuratively). Tape, staples, plastic bag around the outside tied up in knots you have to cut to get through. Plus, food deliverer germs are no worse than food preparer germs. I have enough innate germaphobe in me that I actively refuse to worry about my food being tampered with in ways I won't notice. If I did that, I'd never eat any food I didn't prepare myself, from ingredients that came in their own wrapper (banana, cantaloupe, live mussels).