fall out of no handsfree device?

So yesterday I was working / driving along the 401. I had the radio up and couldn't hear my mike phone beeping and my dispatcher talking to me about a redirection. Turns out that another customer called, and they wanted me to pickup on my way to my other pickup first. Well, I didn't get he page till I arrived at the original location and my dispatch was pissed off. oh well. They are not going to be able to give us a hands free device that can use the mike feature on the phone that work gives us. And we can't be talking on the mike while driving, so I guess that in the end the customer and then our boss will lose business with this law in place.