Waaaaay back in the day, when I worked at Bradlees (anyone remember Bradlees?) there were occasions when people would come in with rolled coins, or even loose coins to pay for things (frequently boxed sodas, which made me wonder...). Over in the cash room, which was just behind the cash registers, they actually had one of those coin counting machines.
We were instructed that, if we were confronted with rolled coins or a similar volume of coin, we were to have a supervisor take it up to the window and it was spun through the machines. We could not accept rolls of coins without opening them - too many cases of someone putting a piece of dowel rod between two proper coins (in case the cashier opened one of the ends). Once it was spun, the supervisor brought back the paper equivalent for our drawers.