Your employers makes you sign some document about your place of residence in order to determine your salary. If you say California there, then I am sure CA-FTB

Your employers makes you sign some document about your place of residence in order to determine your salary. If you say California there, then I am sure CA-FTB will have standing when they come after you for unpaid taxes. Or, you might be perjuring yourself in some way. (IANAL so won't commit to the exact legal definition of that word).