We still haven't seen one yet and this morning at a cafe for breakfast I noticed that the till still had a compartment full of old £1 coins.
Yesterday (Friday) we had an interesting experience. We were picking up a friend from the Sunderland Eye infirmary and parking was £2. We put in 2 old £ coins, and it printed out the ticket, and just as we were walking away we heard it rattle so went back and found 3 old £ coins in the drawer. Nice. We wondered if it had been modified to accept both old and new coins but the modification had not been done properly.