It's not so much the grill smell as it is the grill smoke. A lot of kebab stands in NYC cover half the intersection in a thick haze. It's mouth-watering when you're hungry, and annoying when you're not.
Personally I don't care that the trucks emit smells, but if they're injecting so much smoke into the atmosphere that I can barely see, that's no longer cool.
Maybe you should have to pay to avoid grill smells?