The getaway

I'm guessing that this was some sort of clothing store which caters to the very lazy:

New York police said a geriatric robber with a cane and an oxygen tank fired three shots at a clothing store before fleeing empty handed.

There is no word in the article about whether or not his oxygen tank doubled as a jetpack, but I'm guessing that was probably the case. Because, otherwise...well, I really shouldn't have to explain this.