The alliteration creates a fast pace like the horses' hooves.
Answer:
The author threw it into the alley because his brother called him a "camouflage".
He picked it up afterwards to drape it inside because he will be needing it when the sky is cold.
Explanation:
From the excerpt, we can see that the author reveals that he flung the jacket into the alley when his brother called him a camouflage. There was something that was spotted which made the brother to call him a camouflage.
The author revealed that when he flung over to the alley, afterwards, he went to pick it up and to drape it on his laps. When the sky became cold, he slipped into it.
..."but she was still woozy from the opiate her captors used to drug her."
"She didn't dally because the guards would be searching for her in a matter of minutes."
"Alex gorged herself on a bag lunch that one of the guards had left unattended near her cell."
"Seconds later, she began looking for the antiquated truck that the guards had used to transport her to the compound."
"...but she had to make it out of the jungle before she could expose the kingpin's felonious operation to the public."