Jerry, I will relay that info to him, thank you. Thanks for the info. I think I'm going to go walk down there and see if I can find the fuse/relay box & controller....it probably did get wet. I just don't know if a huge excavator can get down there without some trees having to be cut. I would say it's barely wide enough for a mid 80s full size blazer to get down there. I'm asking around to see if anyone has a 4wd truck with a capable winch. I will try sliding wood under it if we get someone who can get it lifted up. My dad is going to call the owner of the rental place in the morning and explain the situation and see if he wants to try to get it out or if we should continue to try. Needless to say, he's never allowed to rent a bobcat again.
When dealing with stuck vehicles I was taught to:
1. Stabilize the vehicle to prevent it from getting worse.
If you have them, attach cables to keep it from sinking further or farther down the slope.
Get something solid under the vehicle if possible. We have cut trees and used pieces wider than the loader and started them under the tracks and used the tracks to help roll them under the machine. We have also raised the loader and built a mat of logs so you can push the bucket down on them to help raise the front of the machine. On steel track machines we have cabled logs to the tracks to pull the logs under the loader. Don't spin the wheels or tracks unless it is improving the situation.
2. Try to keep it operational. A dead machine is exponentially harder to extract.
You have already gotten to a very challenging position. If getting a large winch truck to the site is not an option, getting the loader restarted may be a necessity to aid the extraction. At this point I would check the battery and the fuel level and pull the dip stick and make sure there is no water in the crankcase! If the motor has gotten water/mud in it turning it over will make things worse. If the loader has voltage, get us a picture of the display or the exact error code to help determine what error the loader is displaying.
If you are significantly nose down your fuel may have pooled in the front of the tank away from the pickup. You may now have air in the system that will need to be bled. There is a vent on the injector pump that must be opened and a primer bulb on the fuel line running to the injector pump near the back of the engine. You need to keep squeezing the bulb until it becomes firm, then close the vent. There are a number of threads that have covered priming an engine that has run out of fuel.
If you can get it started a tow truck with a winch along with the loader helping may be enough.
You should probably get a hold of the rental business and let them know the situation. They have a vested interest in resolving the problem and probably have the equipment and mechanics to deal with it. It might be cheaper in the long run to get them involved so they can participate and in their eyes "Keep you from doing any more damage to their equipment."
As Fishfiles stated, you are not the first one to get in this situation.
Wishing you some luck, you are going to need it...