There's been a snowstorm and my dad wants to use my car to pick my uncle up from the airport and I'm not going to let him.
What is your reason for not letting him use your car?
No reason, I just don't want him to use my car.
I can understand why you'd want to do that. It's fine to tell your dad no if you're worried about your property.
Lmfao, I'm not worried about my property, I'm just being a jerk!
If you're not worried about your car, then you should loan it to your dad. Your uncle needs to be picked up and being a jerk is rude and causing problems for others. Wouldn't you feel distressed if you were in their shoes?