Tires damaged – dangerous?

My mini apparently had an edge stone touch with the right front tire and a piece of side wall from the tire was “peeled out” (see pictures).The tire is exchanged, that’s no question (especially since there are only 3,500 km on it and I can swap separately).The problem now is that I actually wanted to take a longer ride with the mini on Thursday (a total of 1,000 km) and don’t know if the tyre dealer of my trust can make the exchange by Wednesday. Therefore, my question to people who know the matter: is it dangerous to ride such a track with the tire or does it fall into the category “must be done, but nothing happens”. One more request: Opinions of “interested lay people” do not help me. So please only write something if you really have a clue about the matter. Thank you.