2 snowflakes fall the phone lights up for delivery
I've seen it here in Utah, too. I did pizza delivery for a few years. We'd have big snowstorms from time to time, and it seemed that all the people who weren't raiding the grocery stores (yes, they even do that in Utah where we're used to getting big snowstorms in winter) were ordering pizza instead.
I usually got decent tips, though they'd sometimes complain that it took longer than they wanted it to. I'd just point out that I hadn't been away from my car more than three minutes and would need to go brush piles of snow off of it again before I could leave their driveway. They'd then see just how much snow was on the road and sometimes marvel that my little sedan managed to plow down their street without getting stuck.
My favorite part about those nights was taking orders by phone. After the order was taken and verified and the caller's information was taken and verified, we'd have this exchange...
Me: And will this be for delivery or pick-up?
Customer: Oh, delivery, of course! Have you seen that snow? I'd have to be stupid
to go driving in that!
Me: Not to worry, Customer. We're stupid enough to do just that. Your total is $xx.xx, and it will be there in about xx minutes. Have a good evening! *click*