Canadian citizen, got my papers all done and now need to go to port for the stamp and I-94. Question is I would like to get the stamp and i-95 form but not enter into the US permanently yet. Basically if this was close to a land crossing (2.5 hours away 1 way), I would go there get my stamp and form, enter and turn around back into Canada. There is a pre-clearance station 30 minutes from my current location so can they stamp and give me the form there or do I need to book a flight, etc.?