Funny LAX-LHR BA flights haven't been going out full last few days, a cheap rental car ONE WAY from LAS to LAX with a BA Avis rate is 42GBP - I can estimate a B group would be 30GBP of fuel. So for under 72 Pounds he would be able to get on any of the BA LAX-LHR flights and be on his way. BA has with me before shifted a mechanical cancel flight to another airport if I found my way - and in some of those cases I submitted the hire car to BA and they paid it.

Doesn't seem like he cares to have BA rebook him or have his own rebooking do something effective.