Can an employer make me pay for something that I never received?

My husband was a general manager at a Sonic Drive In in VA. They demoted him for "not knowing enough about his required duties" when he followed every request from the leadership team. They promoted him knowing the extent of his training! So, now he's an hourly manager at another location. He frequently has to go to other locations (including the one he managed) to transfer supplies when stores run out of things. These other locations are dirty on the inside and outside. The employees aren't in full uniform. The managers aren't submitting the required paperwork or achieving the numbers that the leadership team requires. Basically, my husband was demoted for not doing things that he really was doing & now finds most of the other GM's aren't doing. Okay, he'll get over it. THEN, the leadership team tells him that when a customer orders and then drives off without receiving or paying for their food, he has to pay for the ticket. He didn't eat the food, but they said this is a possible way for carhops and managers to steal money, so all drive offs will have to be paid for by the manager on duty or the carhops. VA code 40.1-29 sections C. & D state that it is illegal for an employer to withhold wages without written doentation of agreement, & it's also unlawful for them to make signing such an agreement necessary to retain employment. This isn't actually withholding, but it's certainly forcing us to pay out of pocket for goods & services that we did not receive. Last night, two guests ordered & changed their mind - going to the restaurant next door. My husband refused to pay for the food & today was demoted to a kitchen cook & yet again moved to another location. What can he do? Who should he call first?!