I don't have a detailer recommendation for you - just a preventative tip. I live in AZ. My nose faces south in storage and was oxidizing also. I bought the following material and put it on for the winter. It stayed on through wind and rain. So far so good. I bought enough to do it every year.
http://www.mastershieldprotection.com/xport/
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Tony & Sharon Strungis / Green Valley, AZ
2011 Chevy Silverado LTZ HD3500 dually
2019 Montana FB3921