This is a horrible idea, and likely to get you in deep trouble with the judge.

Your claim is against your friends, not the restaurant.

How can I sue? By paying a lawyer a ton of money to recover the cost of a burger.

This has nothing to do with you, so you cannot sue.

"For no reason." So, this Marriott employee just decided to start cursing at you? That makes no sense, and it is not a legal issue.

Can a parking ticket get dismissed if the location of the offense is misspelled? No

Your mom is looking out for you. Good for her. Yes, this is legal.

Bad customer service is not a legal matter.

Candidly, the real question is whether it is worth investing in an attorney to resolve this.

Not without a lawyer...........................................