You know the Japanese had a plan to invade the US. They changed their mind for a very reason.
No, they did not.
Japan did not have the troops, shipping or resources to invade Hawaii, let alone the West coast of the United States.
The Pearl Harbor attack required a herculean effort to get six carriers and escorts close to Hawaii for a 2 hour raid.
The Imperial Japanese Army allocated all of 11 divisions to attack The Philippines, Malaya, and the Dutch East Indies.
The rest of the IJA was tied down in China, Manchuria, Korea, or The Home Islands.
Add to that Japan was already short of merchant shipping.
An invasion of the mainland US in force was never remotely possible.