Looks like and sounds like Polyblu to me... Will you be ok till Spring??? I wish I could say yes or no... Unfortunately only time will tell. If it is not leaking then I would not worry about it. Just keep in mind that it will eventually fail. If it was me... I would wait till Spring. I like Polyethylene. Here your options are the Poly or soft copper. The reason I like the Poly is that you are able to make it bend a lot easier. Again it is just my preference and both you and your installer should consider what is best.
Here is the route I would take
If there are no trees in the way
I would Dig a hole at the meter and a hole at the house.
Cut the water line at both locations.
Feed a cable back through the water line
Attach one end to my pipe splitter other end to my winch
and slowly pull!
connect at meter
(while doing this)I have a guy drill a hole and feed a PVC sleeve trough the wall.
I feed pipe trough the sleeve.
Install new shut off, back flow, and if need expansion tank.
and collect payment
If Trees are in the way
Dig the trench instead of pulling
Now cost wise depends on if I can schedule more than 1 in a day. If so I just grab my Ram and tow the equipment and I split the equipment rental between however many jobs I have that day. I have pulled 4 on a 16 hour day before to save customers money.
Big advantage to pulling is the ground is not disturbed so there is not settling. Disadvantage is i have pulled the pipe across a Jagged rock and that caused a hole... But then again I offer a lifetime warranty so customers like that chance