In this case, the grocery store patrons are demonstrating a. deviance
Explanation:
The grocery store patrons are not used to seeing someone wear pajama to their work premises and find it out of ordinary. Thus when they give the person looks they are exhibiting that they are seeing something that is completely out of the normal for them.
This is a case of deviance as the workers who see anything apart form the normal are alarmed and become hostile to it partly because of the casual connotation of the pajama bringing in their work space.