I'm not in the club that says you should try to rouse your yeast. You are judging fermentation by the air lock, and some of us that SHOULD know better are just arbitrarily recommending to rouse the fermenter.
There was barely any vodka in there for a 5 gal batch... I don't think it would be highly detrimental.
What temp is it at now?
Strong bubbling the first 24 hrs then dropping to almost nothing may be just fine if the conditions are right for it or your lid isn't sealed completely (no big deal).
The only way to know for sure is to pop open the lid and check your gravity.
But the temp that it's at now will give us a better idea. If it's much below 55-60° ambient, then it could be on the low side for fermenting with most ale yeasts.
Personally, I'd just leave it alone for another week and check it then. But the temp it's fermenting at currently could possibly change my suggestion.