Good luck with that in OK... If I speak correctly, isn't ALOT of the wheeling out there just that: Mud?
HAHAHAHA this story is great though, it really takes me back. Espescialy the bit where you nag the old man so much he snaps... Classic. Many years ago when I was doing this, although over a particularly nasty MKII Golf, I got the exact same reaction. Things will work out, just be extra good around the house and work hard and they'll probably come around. Show your folks you're responsible and it'll go a long way.
Cheers
Dave