Nice reduction Bud! :thumbup
You might consider a partial dose for tonight . But you already said you were late to begin with. Whatever time you shoot tonight, you're going to have to change his shot time in the morning, you can't shoot 3 hrs late tonight and then go back to his normal time in the AM.
If it was me, with a cat other than Lucian, and it was 2-3 hrs past shot time, I'd not shoot and wait till in the morning and give the new dose. It may take several days for him to readjust, but he will. That's what I would do personally and that's just MO. I'm sure you'll get more opinions as we go.
Remember, if you shoot at his normal time in the morning, it will be like a major INcrease and he doesn't need that, besides you aren't home during the day to watch him. I'm more concerned about him tomorrow than tonight. You're there to care for him tonight.