1) The manager giving you a gift card did not mean she agreed with you. Ever heard the phrase, "The squeaky wheel gets the grease." ? You were "squeakiest", so to speak, and you got what she thought would quiet you down. She did what she had to do to calm you down. Often managers have to pacify customers even when the customer was in the wrong. Also, often the associate will be spoken to, but that does not mean they will be fired. A manager worth her salt will find out both sides of the story without going in all guns blazing. Internal customers are more important to me than external customers because if my associates are happy, my customers will be too. End of story. It doesn't mean I won't get on someone for treating a customer the wrong way, though. And the fact that those same employees were going to Burger King, still on a break, also tells me the manager didn't agree with you. If that truely was the last straw with those employees, they would be cleaning bathrooms or going home, not still on break. Because they had to let someone know they were leaving the premises.
2) You speak about respect with regard to age. That is ageist. Do not think that because you are older than someone that they have to respect you. Respect is earned, not given. And you did not do anything to earn it, IMO. I have employees of all ages--the ones 20 years older than me have as much respect as the ones 10 years younger than me.
3) You say it is not you role to be insulted or your job to be inconvienced. So, what is your role? And what is your job? Just curious, because giving the reason for the season, you seem to be all about yourself, and if it doesn't suit you, your "role" or your "job" then by golly, it is not important.
4) I did not appreciate you saying to get a real job. Retail IS a real job, and a job that if it were not there, you would be much more inconvienced than you already "were". Really, you couldn't walk across the store to customer service for your comment--because no, you did not ask a question. You made a "command performance" and were not catered to as all in your "real life" apparently do on a regular basis.