I'm of the opinion that you can go anywhere with your chord progression as long as you're leading somewhere. Classical composers, Jazz musicians and a few rock and roll artists as well have all gallantly defied the alleged "rules" of chord progression and been well acclaimed for it. The only really solid rule that as I understand it is "don't just hop around for no reason, go somewhere." So for instance, we're in the key of C and I began with a C and then an Em. (I,iii) The rules say I probably shouldn't go to D (II) and it doesn't sound very sensible if I just pop over to D for a visit and come back to the root. But if I use that (II) as a tonal bridge to hop on up to A (VI), it works quite nicely. I'm probably not making my point very well but in brief, no, no rules.
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Sir, I think you may have just accidentally invalidated Pink Floyd.