Due to a number of factors out of my control, I had to order a cooked turkey from my natural food store.

Were you re-warming carved or whole. If carved you can make a gravy and warm it in that. Here's a make-ahead gravy recipe http://www.food52.com/recipes/7530_makeahead_turkey_gravy.
If you're re-warming it whole you can melt some butter and mix with white wine. Then baste the turkey as it's warming