Up here in the" Great White North, we have a sign out front that states;
Please keep in mind that, our equipment is not capable to remove all the snow and ice from vehicles. We therefore, recommend that you remove it on your own, before the entering bay. We apologize for any inconvenience.
We are being straight and honest with our customers right up front.
By charging more, I have to agree, that you might lose them to a full serve tunnel.