Man, there is nothing wrong in what you did...I can see some comments that " It is only a hair"..but maybe it is the tip of the iceberg..

Baladiya will not impose a fine or close the restaurant because of your complaint, they will do their own inspection and then decide..If they find that the restaurant functions in unsanitary conditions, then should it not be closed?? You are doing a service to society when you report a restaurant that is unsantary, hundreds of people might be eating there on a regular bases..

and again, KFC is a big chain, nothing is going to happen to them or the employees, even if they are closed for a month