grzbear
Go into the Arcadia District in Scottsdale\Phoenix... Old grove (1940's I believe) citrus is on almost all properties... If you know some people in the area, you should have more than you could ever use if you offer to harvest and haul it away... if you do not know anyone, offer the service, and if you are lucky, people may let you pick and take it away for free, or even offer to pay you to pick the fruit and cart it off. Some do try to make a buck, but I see full bags for $1.00 each all of the time.
Unfortunately there is more grapefruit than anything else... if you find a small stand of oranges, stake it out... There is a good number of lemons too. I have a line on three orange trees... friends and family that let me have at it.
About the beginning of March or so, anything not used is usually mass picked by volunteer groups, loaded into huge palate boxes, and sat on the side of the road throughout the district, for a few days waiting to be carted off by forklifts and flatbeds... they do this to eliminate the citrus food source for roof rats (came over from S.E. Asia on cargo ships and are spreading across the U.S. in produce trucks) and other rodents.
It is take what you can use at that point before the fruit starts falling to the ground.
Ask people at work if they have trees... most will be happy to bring in garbage bags full and give it away to get rid of it.
Last year a late freeze hit hard though and it looks like the trees are not as productive this year as they have been in the past... I think they are still recovering.