Dog in truck?

This is my guard dog. Monty is a 2 y/o 5.5 lb miniature Rat Terrier that loves everybody except when the door is closed. Then, do not stick your hand in the window to try to pet him, he has nipped a Georgia DOT inspector and a couple others. When the opens, he's everyone's friend!
IdahoLaura
Was driving a '16 International and he fit on the window ledge. Usually he would lay and watch the scenery and growl at cows....he's a goat herding dog Going out in a Freightliner this week. Will have to air up the passenger seat so he can look out.

 

A few days ago When he started ridin. He will be a year old in a couple days.

 

all that stopping is going to cut into productive time. can't you have someone at home take care of the dog till you get established?