Is it possible to drive a car 50 miles with a bad lower control arm

Have you checked your UCA bushings?They might be worn/torn causing movement/vibration when brakeing.Just my 2 cents.
Will check them as well , just hate the idea of towing on a flatbed 50 miles ! going to cost big .
Wish there was noise when it happened , that would make it easy , but that bad vibration that feels like metal on rotors is strange . If it were a rotating part hitting something there would be noise , or am I wrong .