Constitutional law section 329 page 1135

"Every person licensed as a vehicle operator shall write his usual signature with pen and ink in the space provided for that purpose on the vehicle operator's 

Jur., Constitutional Law, § 329, p. 1135 wherein it is said: "Personal liberty largely consists of the right of locomotion -to go where and when one pleases - only so far restrained as the rights of others may make it necessary for the welfare of all other citizens.