In Montana I use to hang laundry straight from the washer out in 20 below zero weather. It would be stiff but it dried faster than it froze due to the dry air.
Try a razor blade and start a small cut under the top coin on one end, between two coins. Then get some strong tweezers and try and slowly peel the plastic away in a spiral and let them fall on a towel or micro cloth. Once a few come out, the entire roll should loosen up. Worth a try and minimal contact marks. Oh wait.... hard plastic and not shrink wrapped? Then nevermind.
Yes sir, as you know, I was just joking. I wouldn't part with it either, lol. By the way, Happy (early) Birthday!
Ps Yall I have also been photo'ing other coins I bought. The Campgate I just posted has been a little of a pain to Identify. It came in a flip without a tag or description.