Final answer:
Connie and her friends go to a drive-in restaurant after leaving the shopping plaza. This highlights the mid-20th-century American youth culture depicted in literature and films.
Step-by-step explanation:
When Connie and her friends leave the shopping plaza, they go to a drive-in restaurant across the highway. This setting is a typical scene that can be found in various works of fiction, where teenage characters often hang out in locations like a drive-in establishment. These drive-ins were especially popular in mid-20th-century America and featured in literature and film to capture the youth culture of the time.