The hail destroys the Obelisk and the National Congress, but not the umbrellas.
To form, hail needs the contrast of strong daytime heat with an upper layer of very cold air. That is why it is very rare for it to happen at night. The scene takes place at night only to facilitate the inclusion of CGI in the film.
The mystical man tells Flores that the second fall of hail will occur at night, at 11:00 p.m. Flores's watch reads 11:00 without the mark "p.m." Any clock in 12 hour mode should show "a.m." or "pm". If it was set in 24 hour mode, it should mark "23.00". Clearly, the image of the clock was mistakenly added in post-production.
(at around 99 mins.) The temperature marked on the video graph indicates 23º C. It is unlikely that a hail storm will occur at that temperature.
The 128 bus passes next to the Obelisk, in Buenos Aires, almost 30 blocks from the actual route of this bus, which circulates between Plaza Italia and Pompeya, as clearly seen on the vehicle's led screen.
(At around 104 mins) A bus from line 115 moves along Avenida Corrientes towards Uruguay street. On the actual route, this bus turns one block earlier, on Paraná street.
Luis (Peto Menahem) watches as his car (a taxi) starts to get hit by hail. His wife asks him why he didn't put the car in a safe place. However, Luis only limits himself to crying, and entering his house, allowing the total destruction of the car, without doing anything else, although minutes before, he talked about the importance of that vehicle for him.
Luis (Peto Menahem) tells the insurance company employee that "he works with the car," as if the hail had rendered it unusable. Although Luis is angry about the situation, he can perfectly use his vehicle as a taxi if the only damage is superficial, something that is clearly seen at around 82 mins, when he uses his car to travel to Córdoba.
Luis (Peto Menahem) allows his car to be destroyed by the second fall of hail, saying that it is not a problem, since he has insurance against all risks. Luis could not work with a totally destroyed car. Even if Luis decided to collect the insurance, given the high level of inflation in Argentina, many policyholders who suffer a road accident find that it is not enough to replace the vehicle when the destruction is complete. In turn, as the process to deregister the vehicle can take several weeks and the replacement price is set at the time of the incident, the time elapsed plays against the customer. The only logical option was to keep the car in the garage since Luis knew the exact time of the second fall of the hail.