Society has become second hand smoke conscious. Now it has transcended to cooked foods. Next, if someone has an older car with an exhaust system that can be seen or smelled, some official somebody will be knocking at their door. If you go to a state fair, or the ocean boardwalk, or some similar setting, food vendors depend on their exhaust fans to draw you in as a customer. Eventually, someone will make a case that they have a right to be there and not be exposed to all of those delicious aromas.
The downward spiral continues...........