There are already automated kiosks selling Pizza here and most fast food places already allow people to order using their phone or self-service kiosks.

Delivery is also quickly getting automated with small delivery robots that can likely be remote controlled if they get stuck.

While LLMs cannot reason they can imitate which can be combined with more traditional A.I like utility A.I that makes decisions based on a scoring system. I am guessing LLMs will just be used to make A.I systems talk and execute actions while the actual "inteligence" will be handled through more traditional methods.