Have you tried googling?

I’ve never been to PA, but here we have a store called The Cop Shop. They sell various items such as uniforms and most security accessories. You might try googling or check your local yellow pages. I think their site is yp.com. I use that site a lot when trying to find a local business. You can search by city name or zip code. In most cases, they provide a link to the business’ website as well as local info