Aah! The leaves are about to fall off my maple!!

So, we got a breath of cooler air this weekend, so I got out to rip up some weeds. I was clearing around my new 30-gallon maple trees (that I put in myself) and was alarmed to find that the leaves are curling and looking a little brown-ish. I was just about to panic when I remembered -- it's October, stupid. The leaves are finished for the year. They'll turn brown and fall off. Then they'll come back in March. Duh. Funny how fall sneaks up on a person down here...