I would have tracked down one of the wait staff that served the other couple of tables that were seated and received their food while you were still waiting for yours. I am not above going into the kitchen and asking for assistance. If you don't want me in your kitchen then make sure you have some staff on the floor to assist.
There had to have been a bar tender at the bar that could have assisted. I agree you were not given the attention you should have been given at an eating establishment but I definitely would have checked my food before leaving the restaurant to ensure it was to your standards.
I'm curious to see what their reply will be.

