Is it a lie if you didn't mean to say the wrong thing?

Normally I go to church on Saturday night. It just fits my schedule better when I work every Sunday. However this week I was scheduled for kitchen duty on Sunday. This happens every 8 or 10 weeks and I get to go to church and have people ask me if I'm new to the fellowship I've been attending for 10 or 12 years.

This weekend was Christmas concert weekend. I was asked to bring some baking for Saturday night service, my usual service. Because I knew I was attending Sunday to do coffee duty, I just dropped off my baking on Saturday night and left.

On the way home, I took a different route home than I had taken to get to the church. There was a road block for the Christmas Counter Attack. The kind officer asked, "Have you had anything to drink tonight?"
"No."
"Nothing, at all?"

Since my mind works approximately 347.82 times faster than my lips, the little red devil on my left shoulder had me thinking I should say, "I just came from the church where they are having a Christmas Concert rehearsal. I keep telling them that if they served beer they'd get more volunteers." But at the same time the angel on the right shoulder reminded that I had just had 2 glasses of wine with my dinner. Ooops. I just lied to an officer. I hadn't really intended to lie. I just didn't think. I certainly wasn't drunk, so it didn't cross my mind to say I had had some wine.

Now what do I do? Do I back-track and confess that, yes, I have been drinking. Or do I carry on with my original statement?

I choked out an answer, "Nothing at all."

My nose grew 3 inches and my face turned red in embarassment in the dark and the kind officer glanced me up and down and I guess he approved of my innocent smile as he said, "Have a good evening."