9wt Rod - 11 Wt Line ???

[sinergy]

So on my quest for Bass on the Fly I found a guy on KSL selling a 9wt rod was looking for more a 7 or 8 but the 9wt price was right for my budget. I ordered a DT 9wt floating line & a 9wt sinking line got my order today and looks like they sent me a 11wt floating line ...

Im headed out Friday on camping trip and dont have time to ship it back for them to exchange my order how bad would an 11wt line be on a 9wt rod ?
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