It can be done. I drove Uber part time and a group of girls in the back decided why not drunk water bottle fight. One rolled under as I was going downhill. That is up there with one of the most terrifying moments of my life.
I used the emergency brake and stomped the foot brake as hard as i could multiple times until it was crushed then fished it out.
pedals have this thing where they have space behind them, and if you have no concern whatsoever for safety and yours, and others lives, then you can just slap a water bottle on the floorpan in front of you, and when you brake, that water bottle can roll forward and get caught under the pedal. Leading to restricted braking ability.