Mazdas are reliable enough you don’t need to bother with the extended warranty. My bro is in Houston and came out to his car one day to find it on cinder blocks with the wheels gone, so wheel locks aren’t a bad idea, but that price is about 3x what’s reasonable. As for the other dealer adds, you can always tell them you didn’t ask for them and aren’t paying for them.
Nice, hope you enjoy it for many years to come.