Blinking Nuisance

So I try to open Grumpy's car with the remote key today and it wouldn't open. Obviously my fault because I'm too stupid to be able to do anything so simple, unquote.
"Go and find the spare set," said his royal Grumpiness. "I don't know why this isn't working."
On further investigation it appeared that the indicator lights were on, and had been on all night, leaving a flat battery.
"So it's your fault," I countered. "You didn't turn them off when you pulled into the garage last night."
Actually it was neither of our faults. It was the woman who is really in charge of our car, GPS Woman. Sometime during the night, she fell off the windscreen into the car, pushing down the indicator switch. The car had obviously been blinking away all night, which drained the battery.
Our long suffering neighbours came to the rescue yet again and all is now well. Excepting we are expecting a foot of snow overnight so Grumpy probably won't be able to drive to work tomorrow anyway.