No, not at all. Wait the 10 days no matter what. Your snake needs this time to fully recover.
From what I know, Petco is not exactly a reptile health centre, and if the vet wasn't too concerned about continuous regurges... I don't know, I just don't like it.
The people here are concerned only for the wellbeing of your snake, and with so many supporting views, I think it's safe to concede and accept that your snake can and should be eating larger prey. Take Derek's post, #23, for an example - he's just told you he has 04s on small rats!
When you do get her eating again, move her up ASAP, not just because she's capable of it, but because there's a great deal more nutrition in larger mice than pinks. Nutrition that would be invaluable to her health right now.
The main thing is obviously to get her eating anything successfully, and you've been given some good advice already so I shall shut up now and keep my fingers crossed that things improve soon.