Here's how it turned out -
When that backfired (who knew lunch pick-up didn't start before 11 a.m.?) .. Mom, T and I just meandered to the office .. chillin' .. thinking of ordering in, instead. This got Dad's suspicions waaay up .. particularly when he had to leave the showroom to head to the loading dock to get some chairs unpacked .. we told him to take his cell.
Of course, Dad saw the gorilla come into the building .. and when we called and said, " Hurry up, get down here!" He said, "NO WAY you guys!!" .. showing up moments later. They were both great sports - I think Mom had as much fun as the gorilla.
He has a good voice, no?