Being a salaried employee for a very large corporation I find that the abuses are amazing. We work until the job is done, often 13 to 14 or more hours each workday. We have been scheduled 4 days on and 4 days off but for the past three months we work a hodgepodge of days and nights. My last two weeks were comprised of three days on, two days off, two nights on, one day off, four days on, three days off and now, five days on. This next month will be even worse as two people are moving on because of this very issue. My question is: is there any means of a: being paid for this excess or b: receiving comp days off? I know, this is Arizona but I wanted to ask anyway.

If you are correctly classified as an exempt employee (salaried is only a pay method - what matters is exempt or non-exempt) then while your employer may, if they choose, provide either comp time or additional compensation, they are not legally obligated to provide either.