Too stoned to drive

A few years back me and my buddy finshd smoking a joint and it was time to head back into town. Anyway im doing the speed limit 50 km/h and then we get to the zone where im supposed to increase the speed to 80km/h, My mates like dude why arnt you speeding up, And i reply im trying to man but the car won't go anyfaster. I just could'nt put my foot down anymore on the accelerator to increas the speed I was too dam High. So I had to pull over and let my mate drive us back into town.