While I don't have any pets myself--or any desire for such--I do fully respect your situation.
Some pets do make really good friends and companions.
With all that said--have you (also) tried others in the tanker world? Like maybe Trimac? Or even KAG?
Surely one of those would have opportunities in/near your area.
I wonder what their pet policies are....
Both of those have so many different accounts (and thus, opportunities).
Seems like you could find a "fit" somewhere in one of those--that would still be pet-friendly.
Just stay away from the food-grade world.