yeah i would get the code pulled...autozone will do it for free...maybe avoid driving it until you know what's up with everything? i did the same thing as you a few weeks ago. it sounds like you're okay since the car still runs and everything.

when you unhooked the intake, did you check to see if there was still water in it? a day after mine stalled, i was still able to dump out almost a pint of water. maybe there was still water in it when you drove to get burritos?

 

You can also read the code(s) yourself, without a scan tool, using the procedure described here. The procedure will work for any OBD2 compliant vehicle.