Federal law protects you during transport while it is unloaded and separated from ammunition in your trunk, but once you stop in D.C. (I assume your hotel is in D.C.?), you would be in violation. All firearms brought into D.C. are subject to an immediate registration requirement. However, since you are not a D.C. resident, you cannot register your firearm, placing you in violation by default, even if you were OK with registering your firearm (which includes a test and a training requirement, so I doubt any sane person would do this just for traveling anyways).IrishTiger said:
Their registration requirement is a lawsuit waiting to hap... actually there are lawsuits pending, but as of right now it's still law.