It was the legality aspect that was uppermost in my mind when I started this... I certainly wouldn't even consider a solo flight! And yes, toe brakes might well be an issue in our PA28. If I was in any doubt I'd not go, other than as a passenger.
I've just had a look at Metcheck, and there doesn't appear to be any significant change in the weather for at least a couple of weeks, so the whole thing may turn out to be academic....
RF