Unless you are also using a cane and limping, this would be suspicious. You signed up to play a role. And that role includes props; at least on medium-large bag and a "piggy back" item, such as a cooler, a tool box, or a small bag of books, should do the trick. Be sure that your medium bag has some weight to it by adding, for instance, a pillow, or a few books.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.