I need to get the 4457 completed (Two rifles) for my upcoming November hunt. Once I get to the CBP office, how much time does it typically take? I know there are a lot of variables, but I'm looking for a ballpark number. Should I expect an hour or less, or?? The reason I ask is that it is nearly two hours to the closest office and I'm trying to avoid burning additional vacation time to get this taken care of. Thanks!