How to store car without rodent infestation?

my old man usually puts mothballs underneath the car and arround he doesnt put them inside he finds its hard on leather and such..dryer sheets works awsome inside and just recently we started putting those sticky mouse traps in the trunk and floors we get them at walmart made by tomcat i think its basicly super glue that doesnt dry and its put in a neat plastic tray and suposedly has rodent attraction stuff and as soon as they walk on it to lick it they get glued on there nice neat and with no mess easy to dispose of too