Mud whatever...you're a non-rev...if I had to return to the gate for you or your yappy little pet...you're getting off...so much for your card...
As for PAX standing up while taxiing, outbound, not acceptable...
Inbound however...
While pulling into the gate if they're up clearing the overheads, despite warnings from the cabin crew and the cockpit, I have found that a "gentle" tap on the over-engineered braking system of the B-727 quickly seats the offending miscreants...either back in their seat or in the asile...
The thing to remember is, when the "early risers" are grabbing their stuff to be the "first off" they could fall on or drop their stuff on some innocent old lady, etc...
To answer your question...the Airline, while maybe not liable, will settle....
Mud...I'd love to have you and your dog on my Flt...(NOT)...Pass Priv's are just that...a perk of your job, not your personal right...think about that next time....