A few things to start off:
--"His name is Darryl WALKER and he is not a happy camper." -- You have already introduced Darryl Walker. No need to do it again.
--"He turns on the radio expecting music." -- How do you know he's expecting music? You want to show, not tell.
-- You should never have your character say something and then say something again on a different line. Ex:
No...Honey... I can't believe it.
Oh yeah for how much?
Forget it I'll write the check.
I gotta go. Can I call you later?
-- Double spacing doesn't indicate a pause where the other person talks on the other end of the phone. This should be:
Hello?...No...Honey... I can't believe it. Hon...So what?...Oh yeah for how much?...Forget it, I'll write the check...For what?...I gotta go. Can I call you later?
--3 periods does the trick.
--So far, diolauge is good. Just Give this a quick touch up.