OTOH, an oval rink might be just fine for speed skating.
Gee, this idea is sinful, but if you could make it look to rink management like you were trying to put together an investment group to build a new full sized rink, that might help.
Say, a "letter to the editor" of whatever type of local paper, and/or a call to your local radio station talk show - detailing the problem, and how it is going to eliminate (in your opinion
) virtually all the business going to the old rink, leaving an opportunity for a new rink to take that business over. Then quietly provide a copy of the newspaper letter and/or a recording of the talk show to management.
If you could get someone authoritative, like rink alumni, and that PSA guy, to make the call, that might be even more fun.
In fact the talk show is a great way to attract community attention to the problem.