I bought 7 Grape Vines, 2 concorde,5 Niagra and planted them on
Wednesday of this past week. I am not really sure but I would guess
they are a year old as they already had a shoot or two with leaves
already open.

I planted them about 6-8 feet apart along my fence. The soil there is
pretty much a clay type, however I filled the hole with what the
grape was already in and starter fertilizer that contained peat moss,
compost and loam. It was foggy overnight, and they looked fine the
next morning. HOwever there was a frost warning for Thursday evening
so I covered them with plastic bags.. this seemed to make them very
angry on Friday as they were soggy on the ends and the leaves had
curled up. I replaced the plastic with cut up old curtains ( cotton)
the next night as there was frost as well. This morning Saturday I
took them off as it is Sunny and about 10 degrees Cel. They still
look very sad... The soil is quite wet, and I decided to take off th
"soggy" branches. it releaved the stem was still a health moist green
inside.

Is there any hope for my grapevines or did the frost kill them?