I like it a lot. Seems like it can be used when the conversation is dwindling. It kind of conveys that your an interesting person also.
Just though of something to add to it. You could just completely make up a meaning for not saying 2900. You could be like: "Ya, I found that trick on the internet last night. It said that if you say 3000 it means that your stressed. So what are you stressed about?" Or something like that. That way you have more conversation to build on because people are always stressed about something.
Next time say yesterday.
Its not a lie but it also doesn't imply that you were on the internet all night last night
Its the little things that add up