Should I negotiate my severance?, logistics coordinator here

I was offered 17 weeks of severance after 17 years as a logistics coordinator, and I have a few days to sign. I do not want to leave money on the table. Did anyone negotiate and succeed?

Read the release carefully. Mine included things I did not expect, like a non-compete.

I asked for two more weeks and a neutral reference. They agreed to the reference and added a week.