How to find out if my local Xfinity store has an iPad I need

I am looking to add a line to my mobile service and due to no phone numbers being listed, I am only able to drive store to store in hopes they have what I’m looking for. Unfortunately I live in and around a major city so a 2 mile drive can take me 30-45 minutes with not being able to park without having to either pay or walk a long way (just to find out they don’t have it in stock). I also have a large pickup truck which makes it even harder. 

I had called and the woman I spoke with was no help and told me I could/should have it shipped to me. Unfortunately the only thing is, if I have a package delivered to my house… it is left outside as there is no inside access unless you live there.