s. 346.51 Wis. Stats. Stopping, standing or parking outside of business or residence districts.
(1) No person shall park, stop or leave standing any vehicle, whether attended or unattended, upon the roadway of any highway outside a business or residence district when it is practical to park, stop or leave such vehicle standing off the roadway, but even the parking, stopping or standing of a vehicle off the roadway of such highway is unlawful unless the following requirements are met:
(a) An unobstructed width of at least 15 feet upon the roadway of such highway must be left opposite such standing vehicle for the free passage of other vehicles.
(b) Such standing vehicle must be capable of being seen by operators of other vehicles from a distance of 500 feet in each direction along such highway.
s. 346.21 Wis. Stats. Right-of-way of livestock. The operator of a motor vehicle shall yield the right-of-way to livestock being driven over or along any highway but any person in charge of such livestock shall use reasonable care and diligence to open the roadway for vehicular traffic.