The paint hardens over time as the solvents dry away. The initial drying to the point where you can handle it without leaving a mark is only about 1/2 way through the drying process. But while that part happens fairly quickly the rest of it takes a lot longer as the paint traps the solvents in the film so it takes longer for them to leech to the surface and evaporate. During this time the film will remain soft. "Baking" it in a warm place will certainly speed this up and you can achieve a "one week" hardness in just a few hours by having it a dry sauna set to around 100F. Leave it in for a 24 hour period with an occasional airing out of the room and it'll be as close to fully hard as it'll get. Even a few hours will help a lot.

Unless you also paint the carbon fork I think it'll be a dead giveaway to any thief that knows their stuff.