I've often been on the receiving end of people's generosity in exactly the opposite weather conditions.
Some of the travel survey work has required me to stand out on the street, either monitoring vehicle movements or conducting interviews with pedestrians, in sub-zero temperatures for up to 12 hours at a time (minus a few breaks, of course).
I've had lots of people bring mugs of coffee out to me, sometimes carrying them quite some distance from their homes to where I've been working. On one occasion I had two neighbours who were clearly competing with each other: Lady 1 would bring me a mug of coffee but, later on, Lady 2 would bring me another one, telling me that I deserved 'proper' coffee and not the instant stuff that Lady 1 had given me. That meant that the next time that Lady 1 brought me a coffee she also brought a very generous slice of fruit cake with it. Not to be outdone, Lady 2 supplied with me homemade walnut cake . . . . and so it went on all day!
Of course, it doesn't always work like that. On one occasion (in Dover), I'd been stood on the same spot on the street for many hours, in freezing weather conditions, when the guy who lived in the house that I was standing outside of came out to tell me that if I didn't effing move my effing a_se from outside his effing house he was going to kick my effing head in! C'est la vie ;-)