Is there anyone I can call for wrongful termination?

I would secure another job before going down the legal route. Suing your previous employer while finding an new employer is 'awkward'.

 

Actually, sorry to say, but the company can say that you were primarily fired for leaving the delivery site with product still in your tank.
They can say you were negligent in not verifying all the product (gasoline) had dropped before you left the delivery site.
Note: I'm just thinking how the employer would be thinking.

 

File for unemployment, even though you were terminated. You may lose a few weeks or a month of benefits due to being terminated, but if this turns into a longer period between jobs than you hoped, you will still have some money coming in.
They'll also give the employer a chance to give their version of what happened..

 

Eight years hauling gas, just move over to a better company. You know who they are.

P.S pulling over and draining down on the side of the road wasn't a great move. Just sayin..

 

You should be able to do something if they falsify your DAC report...

 

If those witnesses are willing to step up and say that they have knowledge of him saying this then there could a case The most you could hope for though is to be reinstated as a driver. In this business the term "protected employee" is all but nonexistent. Good luck.