no you don't need to get another change after storage, I just wait till I get close to the mileage they put down for the next service and do it a little before then just for added protection! Basically I end up doing 2 oil changes within the 6-7 1/2 months I get to drive her. First one around 2 to 2 1/2 months then I wait about 3-4 months for the last one (usually ends up being a week or 2 before it goes into storage, <-so you move it all around a little.)
Side note I only get to drive my Z from May 1st to Nov 1st!!
o well still love it!
Example for this year: bought new in May first change in early August, last one in late October