Nice find! I've hit a dry spell with silver when roll searching lately, glad to see it's still out there!
Similar thing took place at Dunkin, Looking at the coins in the tip cup I saw a 25 cent real shinny and the date was 1963. I asked If I could have that quarter for another quarter, they said yes, now if I said I will give you 50 cents or a dollar they would look at me funny. I also look in the reject slot when I pass a coin star, I usually find silver dimes.