Mits

I always have a lunch size insulated bag for frags, and have made stops during transit. Just make sure you keep them on your person. never leave in a vehicle cold, or hot. I have taken frags inside a restaurant, among other places. As for your frags its probably stressed induced bleeching, or could even be light induced. (needing to be acclimated to your lighting).

Massive stress, I would say. I would also put them on the sandbed for a couple days pending how bright your lights are. Instead of smakin you in the face, that's all they can do I've dome something similar, and thought the water isn't that cold till I got home and felt my tank water.....

Weather-wise...that's life up here in Northern NE. IME, Softies and lps and Zoanthids especially, are extremely hardy when it comes to "frag neglect" for transport. Acros have such a narrower temp range, but it sounds like those frags got pretty chilly. That second picture looks like its gone, but you never know. The first frag looks promising.
Transport, I (and most in the hobby up here) usually have heat packs or some sort of warmer. FWIW, clipping the corner of the plastic packaging can stretch out the life of the pack as opposed to just taking it out of the package. If I don't have too many bags, I just double bag them and keep them in my coat for the ride. In the past I've asked people at work to "keep a box warm" for me, and once I tell (and show them) it's alive they usually guard it pretty well.
Regardless, it sucks to lose new frags.

Yeah, so the hawkins echinata is pretty much a goner now and the pearlberry is losing tissue at it's base. The only hope on the pearlberry is one branch still has some color and may survive. I'm so pissed at myself. I traded a huge piece of my frogspawn and now have nothing to show for it.