Attached Link: http://www.westernunion.com/

Western Union allows you to send money via credit card, from their web site. But I suspect the fees may be substantial, since credit cards often charge extra for this kind of thing.

The other question is, can Ron get to the Western Union office, and if so, which one is nearest?

I searched the WU website, and there are several on Amarillo Blvd. (See map.) Not sure if that's convenient to where he lives. There may be closer ones. If you know a street address, you can do a more detailed search.