Traffic stop and separate reckless-driving report

An officer reported being on the right-hand shoulder with a blue BMW that had a temporary tag, said a vehicle search was underway, and asked for another officer to come assist. Separately, radio traffic described a silver sedan heading northbound that was drifting out of its lane and braking excessively. The radio did not clearly give locations for either call, and no injuries, road closures or outcomes were mentioned.