They can ask but you don’t have to answer.
Also, make that between Laredo (Nuevo Laredo) and San Antonio. I noticed that Google, Bing, and Mapquest have removed the English names to US border towns with Mexico.
Laredo Tx is now Nuevo Laredo. The Texas town Brownsville is now Matamoros. Del Rio Tx is now Acuna, and El Paso, Tx is called only Juarez.
B.S.