Lets break it down:

~Went to Taco Bell.
~Got food.
~Went to restroom and observed employee exiting
without washing hands.
~Confronted employee and manager about disgusting,
'dastardly' behavior.
~Ate food (presumably)
~Went home to report disgusting behavior to corporate and asks for freebies.

See the problem here, William? Your integrity took a serious nose-dive when you claim to have been repulsed and disgusted, but not so much that you didn't throw away your food and demand a refund. Which, by the way, is what I would have done.

Then, to further erode your credibility, while relating your 'dastardly deeds' story to corporate, you ask for freebies.

My question is this: Why, if you're truly as repulsed as you claim to be, would you want to eat there again?