Impossible to say. All of my cars in Spain have suffered hail damage but never (thank God) broken glass.
The first shots look like white flooding of something thickly creamy, but the last one shows some residual white on roofs, as well as collapsed, cheap roofing. Now, if the hail happened suddenly, followed by sunshine, small areas would melt more quickly than large; five feet deep makes sense if you think of it as in streets, where roofs have emptied onto them, but that depends on whether or not the place uses flat roofing or pitched.
Odd event. Or more of what Alan would almost certainly define as fake news. Perhaps it is all fake story, and there was a drain blockage at the central laundry. Or nightclub.
:-)