A “special” license plate with one letter and 2 numbers on a Black Suburban with tinted windows sounds like it could be LE. Don’t some of the “Municipal” plates in CT used by the local police and such have just a couple numbers/letters? The white SUV could be LE as well, but it sounds like speed precluded getting enough detail. Of course it could be MT’s movers, or even FD anticipating the worst coming up and trying to move his valuables out.
I would call it in to the tip line as
@afitzy suggests, things have likely really heated up for and between FD and MT in the past few days and who knows what could be going on. It doesn’t hurt, you know, “if you see something say something?”