No, not awkward. I find it funny. If we all gave away our pennies, we would loose a couple of dollars every year. Sorry, but those are my dollars and I'm keeping them. They pay for half of my Netflixs addiction.
No. In fact, if they don't give me the penny back because they assume I don't want it, I get annoyed. If you're going to charge me $3.00 for an item priced $2.99, then just change the marked price to $3.00! Harumph!
Hey, the penny has a portrait of "Honest Abe" on it!