<human>: Credit where due; I believe I read a delicious revenge story here that gave me this idea...

A little background: I haven't had a car (or driver's license) for about 7 years. Lost my license awhile back and just never did everything I needed to to get it back. I didn't need it as I lived within walking/biking distance from work. I just finally did everything to get it back and bought a new car since I live too far from work now to bike, especially since it's getting cold. Woot. 

So, my cousin came in from CA for the holidays last week. She arrived sick and stayed in the first few days but when she was feeling better we made a sushi date. I decided to drive so she could drink and not have to worry about borrowing her parents car for the night. I arrange to pick her up at her sister's house where their family had had dinner (doesn't matter, but she didn't order any rolls just drinks and apps). 

I get to my (older) cousins house to pick my other cousin up and I decide to just shoot her a text instead of going in as I'll get plenty of face time with them over the next days. When she gets in the car, she tells me about a snide comment her sister made when asked how she was getting to sushi:

Cousin1: "how are you getting to the restaurant?"

Cousin2: "djack1987 is picking me up soon!"

Cousin1: scoff "djack1987 can't drive, cousin2."

Cousin2: "actually he can. why don't you just sit down and play with your baby, cousin1?"

So, even though we don't normally get gifts for cousins in Christmas, I bought a play marching band set for cousin1's 18 month and 6 year old. Complete with tambourine, drums and a whistle!

Can you summarize the given text in a few sentences?
<bot>: cousin made a snide comment about my inability to drive when I certainly can, so I bought her hyper offspring the most annoying gift I could find last minute.