Since it's a known location AND it's powerful enough to cause damage, I'd get some eye protection to wear when going into PHX.
Here's info specific to pilots...
Laser Pointer Safety - Laser Glare Protection eyewear for pilots
Also did you contact the FBI... I think they do have jurisdiction in addition to the local yokels since it involves aviation, and they might actually care if you suffered eye damage. Especially if it's a repeat offender who they might be able to actually catch.