Was Arlan's Store in the Packard Plant?

[mtburb]

Since you mentioned Federal:

Was this released after the Wyandotte Federal was converted into what was until a couple years ago their city hall?

All of my personal memories of the Southgate location came after it became Service Merchandise. I still fondly remember those Jetsons-styled conveyor belts that brought customer's purchases all the way to somewhere in the front of the store.