The incident occurred around 5:15 p.m. Monday at the intersection of Black Horse Pike and Cross Keys Road.
According to Washington Township Police, the suspect was not affiliated with the haunted attraction and was not in costume.
"Me and my brother just arrived to work. We were working with his truck and moving stuff and getting ready to open up. In the five minutes we walked away from the truck, someone walked through our wooded area, they went through our storage stuff. Then hopped in his car and drove off the property," said Nick Michielli, an employee at Glow.
Video showed the suspected thief as he narrowly missed hitting a worker while fleeing the scene.
Police Chief Patrick Gurcsik noted that the drive-thru had previously been targeted.
"A Ford truck that had the keys in it, unfortunately, was just stolen, and Glow unfortunately, was the victim of a generator theft that shut down their program until they were able to replace it," Gurcsik said.
"One year exactly, we had someone that stole property. They stole a generator from us. This is the third year in a row someone has stolen from us," Michielli added.
Despite the disruption, the event reopened just hours later.
"Being able to open up just hours later, and seeing all the kids come through and still smile, and getting to bring that joy to the world is a great thing to provide," Michielli said.
Employees said they are grateful no one was injured and emphasized the importance of the event to the local community.
The investigation is still ongoing as police are still working to track down the thief.