No existing public highway, road, or street shall be constructed as a limited access facility except upon the waiver, purchase, or condemnation of the abutting owner's right of access thereto as herein provided. In cases involving existing highways, if the abutting property is used for business at the time the notice is given as provided in RCW 47.52.133, the owner of such property shall be entitled to compensation for the loss of adequate ingress to or egress from such property as business property in its existing condition at the time of the notice provided in RCW 47.52.133 as for the taking or damaging of property for public use.