I sometimes have to travel thru. NY, NJ, IL, HI, or CA,...but I do whatever I can to not spend a penny in the state to include filling up the gas cans in a different state. I will spend an extra few hours to avoid driving thru any of those states unless I absolutely have to. If I find myself traveling thru those states, and need to carry or have a long gun at my final destination, I will usually opt for a lever action in the appropriate caliber for whatever I am doing. Sometimes I'll take a shotgun since the different load options make it versatile. If I have to have a pistol I'll just take one of the single actions. I usually have some kind of semi auto in the truck and really don't pay too much attention to where I go etc.
But, I do when I am anywhere near those states and a few others. NY especially has a reputation of arrest first and figure out if they want to convict later, remember, just because the DA's are not generally prosecuting the laws, that does nothing to stop an arrest. Firearms arrests in NY are like catching a burgler in the act for the rest of the country...lol
Lever action rifles, Pump action shotguns and single action pistols, are pretty much ok almost everywhere.