Answer:
immediately challenge the rule by filing a complaint with the administrative agency.
Step-by-step explanation:
Since the new rule is affecting it's business by increasing cost andaking paperwork cumbersome, Al's Car Shack can file a complaint with the administrative agency stating it's case.
There is no dispute yet so there is no need to challenge the rule in court at this time.
If the administrative agency cannot settle with Al's Car Shack the case may go to court.