What to do about new taco shop smell?

A new taco shop just opened up in my neighborhood (in the same restaurant that used to be another taco shop).

While the tacos are amazing, and they are consistently packed with people, they insist on grilling outside until midnight every night (despite also having a grill inside).

The smell has become unbearable, especially with this warm front. You cannot keep your windows open anytime between 11 am and midnight, because they have their huge charcoal grill going outside nonstop.

I don’t want them to close, but something has to be done. My neighbors and I have all agreed that it is too much.

Do they need a permit from the city to run their grill outside constantly? Is it too much to ask for them to only grill on their indoor grill?