Shortly after the parents come back and Alex learns that Mason may stay as a hybrid man/wolf, is a scene of Justin and Zeke on the street area outside the sub station. In the background of the first shot of that scene is the Murrieta Clown Supplies store.
Peter Murrieta is an executive producer and writer on the series. This storefront has been glimpsed before in other episodes, but this is the first time you get a good look at it.