I did a quick google search, and found out that they do indeed offer over the counter licenses for elk in Arizona. I was actually surprised about it. Apparantly, they are for a VERY limited number of areas, and there is mostly private land and very low elk numbers in these units.
I could not find any reference to if it was open to non-residents. It doesn't say either way. Here is a link to the website so you can read for yourself.
Hinge-cutting serves several purposes in regard to improving both whitetail habitat and your hunting experience. There are two main types of hinge cuts including a cut for screening and funnels and a cut for bedding. Hinge cuts for screening and funnels should be done somewhere between the knee and waist to block a deer's vision as well as block a travel path. Hinge cuts for bedding should be done around chest high so that there is room for a deer to bed underneath.