I raised four of them. Believe me, they move quick when they get nosy!
IF! One or both went to the gate and spotted something interesting...or just Free Range!...they could have been further than dad would've believed they could get in five minutes even.
I was thinking this might explain (partially) the perfunctory "drive around the block" that TW did. Maybe he felt that searching out back of the fence was gonna be too much for just them to handle; so he does a quick drive through the development to make sure they didn't go that way. Then he came back to the house and called for help. They are pretty young parents, and I'm sure even us "seasoned veterans" would be happier with quicker assistance. Plus they don't seem to have gotten to know the neighbors in three months...and being a pretty hardcore introvert, I sympathize...so maybe they didn't feel comfortable knocking on doors asking for help. If they knew there were possible RSOs around, might also be more worrying to ask for help.
(all MOO and craziness)