Likely he was in a hurry speeding from one voting booth to the next to cast his vote(s) and didn't have time to stop.
That happened to a buddy of mine in Phoenix. The illegal stopped after running into his car, my buddy grabbed him, they were “negotiating” a cash settlement on the spot, but a bystander called the cops.
As soon as the illegal heard the sirens, he managed to bolt away. The 200 dollar car he left behind wasn’t much compensation.