Yes that is what I planned on doing this morning Eddy. I called 1-888-242-2100 and here is what they said
You can re apply while in Canada but the application will be sent to the Embassy of Canada in the applicants country, so no further ahead there.
I see by you post the thing is to avoid standing in line in SD? If that's what this is all about there is an easier way.
The man on the phone said they can fill out the application, pay the fee with a credit card all on online and when SD is ready they will call to bring in the passport.
So here it is
Application For Temporary Resident Visa (TRV)
The US might be a little different. I'll let you do the search
Visitor Visas - Business and Pleasure
BTW this is strictly me talking but I wouldn't take a chance on re applying too early there is always a chance of being denied. Never know with CIC.