Thanks for the suggestions. I have tried another browser without success but I will remove cookies and uncheck remember log info and try it. As for purchasing a dedicated Nexus, that is essentially what I did. (and in fact if I can get this to work I'd be looking to purchase them for many employees who deal directly with our customers). The problem remains that we have to log customers in as if they owned the Nexus then delete the information (it's not as clean as just logging out).
I am an automobile dealer in a rural area. When customers are taking delivery of their vehicle, I try to meet and thank them individually when the opportunity arises. There are many occasions where a customer is in my showroom and tells me what a great experience they had dealing with a specific salesperson or manager. Of course, we ask them to post reviews for us but even though they all say they will, a smaller percentage actually do. So, when they are here raving about the experience, I want to be able to hand them a Nexus and say "would you mind telling the world about it while you are here" or some thing to that affect. I can sit them in front of a terminal but the ability to hand them a Nexus I think would elevate the experience and add a certain panache as mentioned.
Now, as for bad reviews, yes, they are part of life and we get a few, although, our reviews are overwhelmingly positive. I try to answer every review, both positive and negative and if I have a negative review I look at it as an opportunity to correct any errors an save a customer. You can see my place page and reviews here: http://goo.gl/maps/vDhsN