I got my cdl the old fashion way through the DMV. I want on the road with a o/o which is my friend for 2.5 months. How can i verify this? Thanks for any help.

can be verified though paystubs or by contating your employer. Also, log books can sometimes work..depending if the employer will take them into consideration.

I doubt that any company would consider your time spent with an O/O as experience. Perhaps a local company running dump trucks or something similar would look at you. But as far as running with any established trucking company you will be hired on as if you have just received you CDL and will be required to go through their training program.