If you purchase and use tickets that you are know are for So Cal residents only then you are certainly condoning the activity and going against Disney policy. I don't think it's an 'illegal" activity but it certainly is against policy. My kids live with me in Nor Cal, their Father lives in So Cal, since I am the custodial parent he is not able to purchase them discounted tickets. Everyone here knows how pricey a Disney vacation can be, I am a CA resident but since I'm in Nor Cal I do not qualify for discounted admission, I don't go against policy and try to use the discount tickets anyway, we pay for admission like all other non-residents. Since you are from Boise you do not qualify either. It my strong suggestion that you do not try to use So Cal tickets but try to adjust your budget (staying somewhere cheaper perhaps, cut the food budget some?) to purchase the correct tickets for your group.