Gary we talked about this last night and it seems everyone here is on the same page as our conversation. Like I had said last night you could talk to him next week or when ever you happen to seem them next, talk to them about what happened and if they don't cooperate get out you B.F.H. and then tell them "your hood or mine buddy, you're paying for one of them!" (I'm kidding of course). I don't particularly see it as being your fault that you hit the cable. I mean the cable was at best 5/16" thick and was being used in a shaded area. Whom ever parked the truck/trailer the way they had and then parked across the was from thier trailer is dumb. With the parking lot being as big as it is why wouldn't you park your rig in a way that you could park your racer with it the same way the rest of us do? The only part I think you did wrong was to not get out if your car while the cable was still sitting on it. Hopefully that guy you talked to last night will be able to fix it for the $300. Also, when you go to talk to them make sure you have someone with you as a witness. Right now it's you're word against his and that goes a long way.
If you're dumb/inconsiderate enough to which acrossed the road while not making every attempt to insure no one hits your cable or car then I'm sure you would be dumb/inconsiderate enough to be pissed off.