Depending upon when the merger closes, all future ITM calls & puts will be accelerated to the next option expiration (if they wrap it up before the end of today, there's a chance it gets included in the OCC's list for March options which will be published tomorrow--otherwise, it will be Apr 20). Either way, you can exercise your calls/puts after the transaction date declared by the OCC and your broker will cash settle you or it will happen automatically for you at expiration.
IDSY now up 15% YTD. They got an approved patent wrt car sharing and virtual technology. I would bet my last dollar that they will sue ZIP/Avis at some point.
As an aside, ZIP just settled their class action lawsuit wrt punitive late fees.