Hey dude, the dual power supplies in servers are usually for redundancy. Both should have already been plugged in obviously, but if it wasn't able to run on just the one, then the one that was plugged in should probably be replaced ASAP.
You probably already know this, but I figured I'd point it out just in case.
Now, please tell me you got paid to ride your motorcycle all that distance just to plug the power back into the wall 😀. (I know you probably couldn't take the bike in case you needed your tools, but please tell me you did anyway. The weather looked pretty nice today from my desk. 😐)