SQL Query: Print string (i.e. header) in output before returning table results
I stumbled upon this thread which contained a suitable solution. I ended using a query similar to the following to generate my desired results:

select customer_account, store_number, invoice_total
from ((select 'Frank’s Fish Supply' as customer_account, '' as store_number, '' as invoice_total, 1 as which
      ) union all
        (select 'Remit To:' as customer_account, '' as store_number, '' as invoice_total, 2 as which
      ) union all
        (select '123 First St., Wonderland, HI 12345' as customer_account, '' as store_number, '' as invoice_total, 3 as which
      ) union all
        (select '' as customer_account, '' as store_number, '' as invoice_total, 4 as which
      ) union all
        (select 'customer_account' as customer_account, 'store_number' as store_number, 'invoice_total' as invoice_total, 5 as which
      ) union all
      (select customer_account, store_number, invoice_total, 6 as which from arinvc where company LIKE '%Joe’s Bait Shop%'
      )
     ) t
order by which;