George would vote, but only if it would impress his current girlfriend. Jerry would just wander by the precinct and get into random discussions with voters, not only missing his own chance to vote, but preventing others from getting in on time.
Ha! I think George would lie and say he voted and then his girlfriend would ask him what he thought about such and such an amendment and then he would go into a panic attack. Don't forget, he lied about the contest and never admitted it until the last episode when the plane was going down.