Here is the item again:
Baking in his hot car during rush-hour traffic, Joe drank the last few drops
of his iced tea. And prayed that he could make the costly repair to his
broken air conditioner with this week's paycheck.
You chose to use Punctuation Rule 8 to fix the problem:
Main Clause + Ø + Lonely Verb Phrase.
Here is the correction:
Baking in his hot car during rush-hour traffic, Joe drank the last few drops
of his iced tea and prayed that he could make
the costly repair to his broken air conditioner with this week's paycheck.
Well done! You deserve that cyber milkshake!