I keep RAC cover, had it for years. It covers me and the co-pilot in any car we happen to be driving. I've used them twice, once on the bike when I had a rear wheel puncture on a bike with tubed tyres and once with a car when the alarm wouldn't turn off in a car park at Gatwick.
They brought me and the bike home and towed the car out of the car park, away from a radar transmitter when the remote then worked. The engineer said the radar transmitter swamped the signal from the key fob transmitter and it was a common problem.
Given the plus 8 doesn't have a spare wheel, just a can of goo, I think it is rather important!