1/19/174 4:24 pm PST. Just went to Smuggler's Cove Wishing Well, pressed 'x', and didn't get anything because I was at max Gold. I think that there should be a message displayed when you don't get any Gold due to being at max Gold.
I think that if you're at max gold your well should automatically give you scrip - the amount doesn't matter. That well only gives 2 things - gold or scrip, if it can't give more gold, then give us scrip!