The theft took place Saturday evening outside the ShopRite on Route 211, when the bell ringer stepped away for a few minutes on a break.
Officials with the Salvation Army are concerned the suspect could now pose as a collector himself, because the entire display was stolen, including a tripod and sign.
On Tuesday, the supermarket chain tried to spread a little holiday cheer, telling Eyewitness News in a statement: "We were very disappointed to hear about the theft of the Salvation Army donation kettle in Wallkill over the weekend. As such, ShopRite Supermarkets will make a donation to cover the lost $500 as well as an additional $100 to put towards this tremendous community partner."