oh shoot--I didn't see "temp"
I'm sorry, I'm not sure what your travel bennies will be. I'm not sure about step-kids in your case--particularly 19 yr old non dependents. Yield fare tickets are priced similar to buddy passes--mileage + fees/taxes. Just a bit less. Sometimes it's better to buy seats on certain routes--with your DOH, they'd have limited access to certain routes as NRSA.
You really need to get accurate info from your super. Good luck--and please let us know what you found for toehrs who may need the info.