California DMV cannot restrict the driving privildeges that you have with your Arizona license EXCEPT within the state of California. So, assuming you retain your valid Arizona license, if you do get suspended or restricted by the California DMV, once you cross the state line and leave California, you have no limitations, except those that Arizona may have imposed (need glasses, etc.)
Also, the attorney that you hired sounds like they don't know what they are doing as this is a very basic question that they should be able to answer. Hopefully they won't "screw up" your DUI case as based on the limited info you posted here it sounds like the DUI charges should get dismissed. Might want to talk with a more experienced DUI attorney here in San Diego that knows what he's doing before you end up with a punishment or plea that you should not end up with.
William Daley (619) 238-1905 / www.lawofficeofwilliamdaley.com
Whatever the results are in your CA case would pass to AZ through the Interstate Compact Act. Speak with an AZ DUI attorney how any conviction would impact your AZ license.
ANDREW ROBERTS CRIMINAL AND TRAFFIC TICKET DEFENSE ATTORNEY
Mr. Roberts is correct the interstate compact act will amount to passing the CA. info to Arizona. An Arizona attorney is better equipped to answer that states laws pertaining to getting your AZ license.