The Simpsons 10-Code

If you watched the 1999 March 28 episode of The Simpsons — “Maximum Homerdrive” — wherein Homer becomes a trucker, a “10-38” was broadcast and you saw a trucker consulting a page which listed a few 10-codes. Here's that list:

10-33 Actual bear in air.
10-34 Can’t unchain wallet.
10-35 Hot enough for ya?
10-36 Ghost truck on highway.
10-37 Ask me about my grandchildren.
10-38 Outsider blabbing about auto-drive system.
10-39 I love you, gay buddy.
10-40 Taxes due.