Audio problem: The section of sound effects used as the Trans-Am and the big-rig pull up to the warehouse to get the beer is exactly the same 'loop' as the effects used when the Trans-Am and the big-rig stop by the pond to give 'Fred' his burgers for lunch. Specifically, the Trans-Am's engine idling down to a stop, then the T/A's door closing, then the big-rig's air brakes squealing a very distinctive sound and finally the big-rig's engine rattling to a stop. Exact same 'loop' both times.
Audio problem: When the one police officer says "Headquaters, disregard my last transmission", he is upside down in his car. When he says that though, his words are out of sync with his mouth. (01:20:00)
Answer: Don't know if she did cartoon voices, but her name is Nora Meerbaum. She was in Airplane and St. Elmo's fire in the following years though so you may know her from those.
I thought the same thing. Maybe one of the Mrs Clauses in Christmas cartoons.
Shirley Booth voiced the Christmas favorites.
She looks and sounds like Shirley Booth, Mrs. Claus in The Year Without A Santa Claus (1974).