There's a sign on the storefront about 10 minutes in with logos and brand names taped over.
About 15 minutes in Dan Matthews is talking to the Highway Patrol office via telephone. He gives them instructions and then says "10-4" as if he is talking via two-way radio.
Mathews (Broderick Crawford) is on the phone with headquarters when he learns the description of the vehicle they're looking for. Despite finding out when the other units are checking in, he never relays that description to the dispatcher so she can inform those other units,