Question

Read this phrase from Allen Ginsberg’s "A Supermarket in California."

I wandered in and out of the brilliant stacks of cans following you, and followed in my imagination by the store detective.

From this excerpt, it can best be inferred that the speaker is
unconcerned about the time.
searching for a particular item.
being closely watched for shoplifting.
overwhelmed by the multitude of choices.

Answer 1

being closely watched for shoplifting.

The phrase "followed in my imagination by the store detective" directly implies the speaker feels watched/suspected of shoplifting.