He did not reattach your cargo screen? If he moved it out of the way he left it retracted. If he did then the switch is not being depressed and the roof will not go back and the light will blink warning you that the cargo screen is not in place. Its a safety device to protect the roof least something too tall is back there where the roof needs to rest. Open the trunk and see if the screen is retracted and not in its perches.

Thats my guess.

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1983 300D-Turbo - Deep Blue w Palomino MB Tex (total loss in fire 1/5/09 RIP)
1995 E320 W124 Polar White/Grey Mushroom MB Tex
2005 F150 Supercrew - Arizona Beige - Lear topper
1985 Piaggio Vespa T5 - Black and Chrome

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