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LM2596: Reverse current protection of LM2596(5V out)

Part Number: LM2596

Hi all, I want to ask some questions about Reverse current protection of LM2596(5V out):

1) With Figure 1: I see that Absolute maximum ratings of Pin4 (Feedback pin) is -0.3to25V. When LM2596 is operating if I apply 28V to Point1 by mistake, Are LM2596 and Cout (Rate voltage=10V) damaged ?

2) With Figure 2: when LM2596 is operating if I apply 28V to Point1 by mistake, Are LM2596 and Cout (Rate voltage=10V) damaged ? If this solution is ok, Have any disadvantages with this solution ?

3) Have any application notes or technical documents about Reverse current protection of LM2596 ?