Play continues as usual, the KOMBIO Caller can still win with a score lower than zero.
Yes, you can match with cards you are currently viewing during your turn.
No, players are not allowed to re-arrange cards in their hands.
No, you can't swap a card with nothing, swaps must be between two cards.
No, cards must stay in their respective places.
The person who makes contact with the discarded card and the match card wins. If the race was close, players at the table vote who won the race.